Improve eslint and fix package.json with missing packages

.eslintrc.yml

@@ -4,10 +4,15 @@ env:
   webextensions: true
 
 parserOptions:
+  ecmaFeatures:
+    jsx: true
   ecmaVersion: 2017
+  sourceType: module
 
 extends:
   - eslint:recommended
+  - plugin:react/recommended
+  - plugin:jsx-a11y/recommended
 
 globals:
   BrowserStorageCredentials: false
@@ -32,6 +37,10 @@ globals:
   saveToKinto: false
   setAnimation: false
 
+plugins:
+  - jsx-a11y
+  - react
+
 root: true
 
 rules:

package-lock.json

@@ -111,7 +111,7 @@
       }
     },
     "@ckeditor/ckeditor5-heading": {
-      "version": "github:vladikoff/ckeditor5-heading#b982cbdc27bc9d61020375a61b9a413b1c189988",
+      "version": "github:vladikoff/ckeditor5-heading#459ef936eaea114ecdaabb3d47a931dc56a2889f",
       "requires": {
         "@ckeditor/ckeditor5-core": "1.0.0-alpha.2",
         "@ckeditor/ckeditor5-engine": "1.0.0-alpha.2",
@@ -849,6 +849,16 @@
         "sprintf-js": "1.0.3"
       }
     },
+    "aria-query": {
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/aria-query/-/aria-query-0.7.1.tgz",
+      "integrity": "sha1-Jsu1r/ZBRLCoJb4YRuCxbPoAsR4=",
+      "dev": true,
+      "requires": {
+        "ast-types-flow": "0.0.7",
+        "commander": "2.12.2"
+      }
+    },
     "arr-diff": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
@@ -881,6 +891,16 @@
       "integrity": "sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=",
       "dev": true
     },
+    "array-includes": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/array-includes/-/array-includes-3.0.3.tgz",
+      "integrity": "sha1-GEtI9i2S10UrsxsyMWXH+L0CJm0=",
+      "dev": true,
+      "requires": {
+        "define-properties": "1.1.2",
+        "es-abstract": "1.10.0"
+      }
+    },
     "array-map": {
       "version": "0.0.0",
       "resolved": "https://registry.npmjs.org/array-map/-/array-map-0.0.0.tgz",
@@ -971,6 +991,12 @@
       "integrity": "sha1-E8pRXYYgbaC6xm6DTdOX2HWBCUw=",
       "dev": true
     },
+    "ast-types-flow": {
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/ast-types-flow/-/ast-types-flow-0.0.7.tgz",
+      "integrity": "sha1-9wtzXGvKGlycItmCw+Oef+ujva0=",
+      "dev": true
+    },
     "async": {
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/async/-/async-2.6.0.tgz",
@@ -1029,6 +1055,15 @@
       "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz",
       "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4="
     },
+    "axobject-query": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/axobject-query/-/axobject-query-0.1.0.tgz",
+      "integrity": "sha1-YvWdvFnJ+SQnWco0mWDnov48NsA=",
+      "dev": true,
+      "requires": {
+        "ast-types-flow": "0.0.7"
+      }
+    },
     "babel-code-frame": {
       "version": "6.26.0",
       "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz",
@@ -1139,6 +1174,12 @@
         "lodash": "4.17.4"
       }
     },
+    "babel-helper-evaluate-path": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-evaluate-path/-/babel-helper-evaluate-path-0.2.0.tgz",
+      "integrity": "sha512-0EK9TUKMxHL549hWDPkQoS7R0Ozg1CDLheVBHYds2B2qoAvmr9ejY3zOXFsrICK73TN7bPhU14PBeKc8jcBTwg==",
+      "dev": true
+    },
     "babel-helper-explode-assignable-expression": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-helper-explode-assignable-expression/-/babel-helper-explode-assignable-expression-6.24.1.tgz",
@@ -1162,6 +1203,12 @@
         "babel-types": "6.26.0"
       }
     },
+    "babel-helper-flip-expressions": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-flip-expressions/-/babel-helper-flip-expressions-0.2.0.tgz",
+      "integrity": "sha512-rAsPA1pWBc7e2E6HepkP2e1sXugT+Oq/VCqhyuHJ8aJ2d/ifwnJfd4Qxjm21qlW43AN8tqaeByagKK6wECFMSw==",
+      "dev": true
+    },
     "babel-helper-function-name": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz",
@@ -1193,6 +1240,24 @@
         "babel-types": "6.26.0"
       }
     },
+    "babel-helper-is-nodes-equiv": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/babel-helper-is-nodes-equiv/-/babel-helper-is-nodes-equiv-0.0.1.tgz",
+      "integrity": "sha1-NOmzALFHnd2Y7HfqC76TQt/jloQ=",
+      "dev": true
+    },
+    "babel-helper-is-void-0": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-is-void-0/-/babel-helper-is-void-0-0.2.0.tgz",
+      "integrity": "sha512-Axj1AYuD0E3Dl7nT3KxROP7VekEofz3XtEljzURf3fABalLpr8PamtgLFt+zuxtaCxRf9iuZmbAMMYWri5Bazw==",
+      "dev": true
+    },
+    "babel-helper-mark-eval-scopes": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-mark-eval-scopes/-/babel-helper-mark-eval-scopes-0.2.0.tgz",
+      "integrity": "sha512-KJuwrOUcHbvbh6he4xRXZFLaivK9DF9o3CrvpWnK1Wp0B+1ANYABXBMgwrnNFIDK/AvicxQ9CNr8wsgivlp4Aw==",
+      "dev": true
+    },
     "babel-helper-optimise-call-expression": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-helper-optimise-call-expression/-/babel-helper-optimise-call-expression-6.24.1.tgz",
@@ -1226,6 +1291,12 @@
         "babel-types": "6.26.0"
       }
     },
+    "babel-helper-remove-or-void": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-remove-or-void/-/babel-helper-remove-or-void-0.2.0.tgz",
+      "integrity": "sha512-1Z41upf/XR+PwY7Nd+F15Jo5BiQi5205ZXUuKed3yoyQgDkMyoM7vAdjEJS/T+M6jy32sXjskMUgms4zeiVtRA==",
+      "dev": true
+    },
     "babel-helper-replace-supers": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz",
@@ -1240,6 +1311,12 @@
         "babel-types": "6.26.0"
       }
     },
+    "babel-helper-to-multiple-sequence-expressions": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-helper-to-multiple-sequence-expressions/-/babel-helper-to-multiple-sequence-expressions-0.2.0.tgz",
+      "integrity": "sha512-ij9lpfdP3+Zc/7kNwa+NXbTrUlsYEWPwt/ugmQO0qflzLrveTIkbfOqQztvitk81aG5NblYDQXDlRohzu3oa8Q==",
+      "dev": true
+    },
     "babel-helpers": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-helpers/-/babel-helpers-6.24.1.tgz",
@@ -1269,6 +1346,17 @@
         "babel-runtime": "6.26.0"
       }
     },
+    "babel-minify-webpack-plugin": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-minify-webpack-plugin/-/babel-minify-webpack-plugin-0.2.0.tgz",
+      "integrity": "sha512-+5G5Qqm+DIVl7gY4rkHqlFRkaf1FZtz0imzu/Dy9+88AfOIuy7D5MQjkNgQr5gU6/YSZ+rImgxDqFcWkvvrjkQ==",
+      "dev": true,
+      "requires": {
+        "babel-core": "6.26.0",
+        "babel-preset-minify": "0.2.0",
+        "webpack-sources": "1.0.1"
+      }
+    },
     "babel-plugin-check-es2015-constants": {
       "version": "6.22.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-check-es2015-constants/-/babel-plugin-check-es2015-constants-6.22.0.tgz",
@@ -1278,6 +1366,101 @@
         "babel-runtime": "6.26.0"
       }
     },
+    "babel-plugin-minify-builtins": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-builtins/-/babel-plugin-minify-builtins-0.2.0.tgz",
+      "integrity": "sha512-4i+8ntaS8gwVUcOz5y+zE+55OVOl2nTbmHV51D4wAIiKcRI8U5K//ip1GHfhsgk/NJrrHK7h97Oy5jpqt0Iixg==",
+      "dev": true,
+      "requires": {
+        "babel-helper-evaluate-path": "0.2.0"
+      }
+    },
+    "babel-plugin-minify-constant-folding": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-constant-folding/-/babel-plugin-minify-constant-folding-0.2.0.tgz",
+      "integrity": "sha512-B3ffQBEUQ8ydlIkYv2MkZtTCbV7FAkWAV7NkyhcXlGpD10PaCxNGQ/B9oguXGowR1m16Q5nGhvNn8Pkn1MO6Hw==",
+      "dev": true,
+      "requires": {
+        "babel-helper-evaluate-path": "0.2.0"
+      }
+    },
+    "babel-plugin-minify-dead-code-elimination": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-dead-code-elimination/-/babel-plugin-minify-dead-code-elimination-0.2.0.tgz",
+      "integrity": "sha512-zE7y3pRyzA4zK5nBou0kTcwUTSQ/AiFrynt1cIEYN7vcO2gS9ZFZoI0aO9JYLUdct5fsC1vfB35408yrzTyVfg==",
+      "dev": true,
+      "requires": {
+        "babel-helper-evaluate-path": "0.2.0",
+        "babel-helper-mark-eval-scopes": "0.2.0",
+        "babel-helper-remove-or-void": "0.2.0",
+        "lodash.some": "4.6.0"
+      }
+    },
+    "babel-plugin-minify-flip-comparisons": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-flip-comparisons/-/babel-plugin-minify-flip-comparisons-0.2.0.tgz",
+      "integrity": "sha512-QOqXSEmD/LhT3LpM1WCyzAGcQZYYKJF7oOHvS6QbpomHenydrV53DMdPX2mK01icBExKZcJAHF209wvDBa+CSg==",
+      "dev": true,
+      "requires": {
+        "babel-helper-is-void-0": "0.2.0"
+      }
+    },
+    "babel-plugin-minify-guarded-expressions": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-guarded-expressions/-/babel-plugin-minify-guarded-expressions-0.2.0.tgz",
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+      "dev": true,
+      "requires": {
+        "babel-helper-flip-expressions": "0.2.0"
+      }
+    },
+    "babel-plugin-minify-infinity": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-infinity/-/babel-plugin-minify-infinity-0.2.0.tgz",
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+      "dev": true
+    },
+    "babel-plugin-minify-mangle-names": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-mangle-names/-/babel-plugin-minify-mangle-names-0.2.0.tgz",
+      "integrity": "sha512-Gixuak1/CO7VCdjn15/8Bxe/QsAtDG4zPbnsNoe1mIJGCIH/kcmSjFhMlGJtXDQZd6EKzeMfA5WmX9+jvGRefw==",
+      "dev": true,
+      "requires": {
+        "babel-helper-mark-eval-scopes": "0.2.0"
+      }
+    },
+    "babel-plugin-minify-numeric-literals": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-numeric-literals/-/babel-plugin-minify-numeric-literals-0.2.0.tgz",
+      "integrity": "sha512-VcLpb+r1YS7+RIOXdRsFVLLqoh22177USpHf+JM/g1nZbzdqENmfd5v534MLAbRErhbz6SyK+NQViVzVtBxu8g==",
+      "dev": true
+    },
+    "babel-plugin-minify-replace": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-replace/-/babel-plugin-minify-replace-0.2.0.tgz",
+      "integrity": "sha512-SEW6zoSVxh3OH6E1LCgyhhTWMnCv+JIRu5h5IlJDA11tU4ZeSF7uPQcO4vN/o52+FssRB26dmzJ/8D+z0QPg5Q==",
+      "dev": true
+    },
+    "babel-plugin-minify-simplify": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-simplify/-/babel-plugin-minify-simplify-0.2.0.tgz",
+      "integrity": "sha512-Mj3Mwy2zVosMfXDWXZrQH5/uMAyfJdmDQ1NVqit+ArbHC3LlXVzptuyC1JxTyai/wgFvjLaichm/7vSUshkWqw==",
+      "dev": true,
+      "requires": {
+        "babel-helper-flip-expressions": "0.2.0",
+        "babel-helper-is-nodes-equiv": "0.0.1",
+        "babel-helper-to-multiple-sequence-expressions": "0.2.0"
+      }
+    },
+    "babel-plugin-minify-type-constructors": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-minify-type-constructors/-/babel-plugin-minify-type-constructors-0.2.0.tgz",
+      "integrity": "sha512-NiOvvA9Pq6bki6nP4BayXwT5GZadw7DJFDDzHmkpnOQpENWe8RtHtKZM44MG1R6EQ5XxgbLdsdhswIzTkFlO5g==",
+      "dev": true,
+      "requires": {
+        "babel-helper-is-void-0": "0.2.0"
+      }
+    },
     "babel-plugin-syntax-async-functions": {
       "version": "6.13.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz",
@@ -1638,6 +1821,30 @@
         "babel-runtime": "6.26.0"
       }
     },
+    "babel-plugin-transform-inline-consecutive-adds": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-inline-consecutive-adds/-/babel-plugin-transform-inline-consecutive-adds-0.2.0.tgz",
+      "integrity": "sha512-GlhOuLOQ28ua9prg0hT33HslCrEmz9xWXy9ZNZSACppCyRxxRW+haYtRgm7uYXCcd0q8ggCWD2pfWEJp5iiZfQ==",
+      "dev": true
+    },
+    "babel-plugin-transform-member-expression-literals": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-member-expression-literals/-/babel-plugin-transform-member-expression-literals-6.9.0.tgz",
+      "integrity": "sha512-bxtac+8w755ctVeDs4vU98RhWY49eW1wO02HAN+eirZYSKk/dVrKONIznXbHmxWKxT4UX1rpTKOCyezuzLpbTw==",
+      "dev": true
+    },
+    "babel-plugin-transform-merge-sibling-variables": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-merge-sibling-variables/-/babel-plugin-transform-merge-sibling-variables-6.9.0.tgz",
+      "integrity": "sha512-9G1URVEEKoQLDqe0GwqYudECN7kE/q0OCNo5TiD1iwWnnaKi97xY915l5r2KKUvNflXEm9c3faNWknSXYQ7h6Q==",
+      "dev": true
+    },
+    "babel-plugin-transform-minify-booleans": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-minify-booleans/-/babel-plugin-transform-minify-booleans-6.9.0.tgz",
+      "integrity": "sha512-JtpyTRyF+wF/r7GSxpRbNCrVve5M/aCC8xoGcnFItaPUDqjxKmFYvBzMc9u+g0lgo8NWjuZLc16MYaIwkHKD/A==",
+      "dev": true
+    },
     "babel-plugin-transform-object-rest-spread": {
       "version": "6.26.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-object-rest-spread/-/babel-plugin-transform-object-rest-spread-6.26.0.tgz",
@@ -1648,6 +1855,15 @@
         "babel-runtime": "6.26.0"
       }
     },
+    "babel-plugin-transform-property-literals": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-property-literals/-/babel-plugin-transform-property-literals-6.9.0.tgz",
+      "integrity": "sha512-B8s+71+4DPye9+pmZiPGgLPy3YqcmIuvE/9UcZLczPlwL5ALwF6qRUdLC3Fk17NhL6jxp4u33ZVZ8R4kvASPzw==",
+      "dev": true,
+      "requires": {
+        "esutils": "2.0.2"
+      }
+    },
     "babel-plugin-transform-react-display-name": {
       "version": "6.25.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-react-display-name/-/babel-plugin-transform-react-display-name-6.25.0.tgz",
@@ -1697,6 +1913,39 @@
         "regenerator-transform": "0.10.1"
       }
     },
+    "babel-plugin-transform-regexp-constructors": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-regexp-constructors/-/babel-plugin-transform-regexp-constructors-0.2.0.tgz",
+      "integrity": "sha512-7IsQ6aQx6LAaOqy97/PthTf+5Nx9grZww3r6E62IdWe76Yr8KsuwVjxzqSPQvESJqTE3EMADQ9S0RtwWDGNG9Q==",
+      "dev": true
+    },
+    "babel-plugin-transform-remove-console": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-remove-console/-/babel-plugin-transform-remove-console-6.9.0.tgz",
+      "integrity": "sha512-mck9//yGTwObqqqDzY/sISO88/5/XfIB3ILb4uJLXk2xq124NT4yQVjFSRgVSbLcNq8OyBAn2acxKUqg4W/okQ==",
+      "dev": true
+    },
+    "babel-plugin-transform-remove-debugger": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-remove-debugger/-/babel-plugin-transform-remove-debugger-6.9.0.tgz",
+      "integrity": "sha512-i/HWGjsmL2d1N2dl+eIzf44XpSP5v7hi1/GXB0xzom9kjrU8js3T8Kadizn95ZxfHK592Vg8P4JJWP/fvimEWw==",
+      "dev": true
+    },
+    "babel-plugin-transform-remove-undefined": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-remove-undefined/-/babel-plugin-transform-remove-undefined-0.2.0.tgz",
+      "integrity": "sha512-O8v57tPMHkp89kA4ZfQEYds/pzgvz/QYerBJjIuL5/Jc7RnvMVRA5gJY9zFKP7WayW8WOSBV4vh8Y8FJRio+ow==",
+      "dev": true,
+      "requires": {
+        "babel-helper-evaluate-path": "0.2.0"
+      }
+    },
+    "babel-plugin-transform-simplify-comparison-operators": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-simplify-comparison-operators/-/babel-plugin-transform-simplify-comparison-operators-6.9.0.tgz",
+      "integrity": "sha512-EJyfYeph0CSekwQuwWVwJqy2go/bETkR95iaWQ/HTUis7tkCGNYmXngaFzuIXdmoPXfvmXYCvAXR4/93hqHVjw==",
+      "dev": true
+    },
     "babel-plugin-transform-strict-mode": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-strict-mode/-/babel-plugin-transform-strict-mode-6.24.1.tgz",
@@ -1707,6 +1956,12 @@
         "babel-types": "6.26.0"
       }
     },
+    "babel-plugin-transform-undefined-to-void": {
+      "version": "6.9.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-undefined-to-void/-/babel-plugin-transform-undefined-to-void-6.9.0.tgz",
+      "integrity": "sha512-AVDVEmp0S9mbF1O8zekWbsOOmqnR08PZah5NRZJqSvJnFgiL0ep4Lwo4EymH8OieJR2QgQdR3q71TNW+wiVn4g==",
+      "dev": true
+    },
     "babel-polyfill": {
       "version": "6.26.0",
       "resolved": "https://registry.npmjs.org/babel-polyfill/-/babel-polyfill-6.26.0.tgz",
@@ -1776,6 +2031,37 @@
         "babel-plugin-transform-flow-strip-types": "6.22.0"
       }
     },
+    "babel-preset-minify": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/babel-preset-minify/-/babel-preset-minify-0.2.0.tgz",
+      "integrity": "sha512-mR8Q44RmMzm18bM2Lqd9uiPopzk5GDCtVuquNbLFmX6lOKnqWoenaNBxnWW0UhBFC75lEHTIgNGCbnsRI0pJVw==",
+      "dev": true,
+      "requires": {
+        "babel-plugin-minify-builtins": "0.2.0",
+        "babel-plugin-minify-constant-folding": "0.2.0",
+        "babel-plugin-minify-dead-code-elimination": "0.2.0",
+        "babel-plugin-minify-flip-comparisons": "0.2.0",
+        "babel-plugin-minify-guarded-expressions": "0.2.0",
+        "babel-plugin-minify-infinity": "0.2.0",
+        "babel-plugin-minify-mangle-names": "0.2.0",
+        "babel-plugin-minify-numeric-literals": "0.2.0",
+        "babel-plugin-minify-replace": "0.2.0",
+        "babel-plugin-minify-simplify": "0.2.0",
+        "babel-plugin-minify-type-constructors": "0.2.0",
+        "babel-plugin-transform-inline-consecutive-adds": "0.2.0",
+        "babel-plugin-transform-member-expression-literals": "6.9.0",
+        "babel-plugin-transform-merge-sibling-variables": "6.9.0",
+        "babel-plugin-transform-minify-booleans": "6.9.0",
+        "babel-plugin-transform-property-literals": "6.9.0",
+        "babel-plugin-transform-regexp-constructors": "0.2.0",
+        "babel-plugin-transform-remove-console": "6.9.0",
+        "babel-plugin-transform-remove-debugger": "6.9.0",
+        "babel-plugin-transform-remove-undefined": "0.2.0",
+        "babel-plugin-transform-simplify-comparison-operators": "6.9.0",
+        "babel-plugin-transform-undefined-to-void": "6.9.0",
+        "lodash.isplainobject": "4.0.6"
+      }
+    },
     "babel-preset-react": {
       "version": "6.24.1",
       "resolved": "https://registry.npmjs.org/babel-preset-react/-/babel-preset-react-6.24.1.tgz",
@@ -3188,6 +3474,12 @@
         "es5-ext": "0.10.37"
       }
     },
+    "damerau-levenshtein": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/damerau-levenshtein/-/damerau-levenshtein-1.0.4.tgz",
+      "integrity": "sha1-AxkcQyy27qFou3fzpV/9zLiXhRQ=",
+      "dev": true
+    },
     "dashdash": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
@@ -4086,6 +4378,12 @@
         "minimalistic-crypto-utils": "1.0.1"
       }
     },
+    "emoji-regex": {
+      "version": "6.5.1",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-6.5.1.tgz",
+      "integrity": "sha512-PAHp6TxrCy7MGMFidro8uikr+zlJJKJ/Q6mm2ExZ7HwkyR9lSVFfE3kt36qcwa24BQL7y0G9axycGjK1A/0uNQ==",
+      "dev": true
+    },
     "emojis-list": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/emojis-list/-/emojis-list-2.1.0.tgz",
@@ -4529,6 +4827,21 @@
         }
       }
     },
+    "eslint-plugin-jsx-a11y": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-jsx-a11y/-/eslint-plugin-jsx-a11y-6.0.3.tgz",
+      "integrity": "sha1-VFg9GuRCSDFi4EDhPMMYZUZRAOU=",
+      "dev": true,
+      "requires": {
+        "aria-query": "0.7.1",
+        "array-includes": "3.0.3",
+        "ast-types-flow": "0.0.7",
+        "axobject-query": "0.1.0",
+        "damerau-levenshtein": "1.0.4",
+        "emoji-regex": "6.5.1",
+        "jsx-ast-utils": "2.0.1"
+      }
+    },
     "eslint-plugin-no-unsafe-innerhtml": {
       "version": "1.0.16",
       "resolved": "https://registry.npmjs.org/eslint-plugin-no-unsafe-innerhtml/-/eslint-plugin-no-unsafe-innerhtml-1.0.16.tgz",
@@ -4747,6 +5060,18 @@
         }
       }
     },
+    "eslint-plugin-react": {
+      "version": "7.6.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-react/-/eslint-plugin-react-7.6.1.tgz",
+      "integrity": "sha512-30aMOHWX/DOaaLJVBHz6RMvYM2qy5GH63+y2PLFdIrYe4YLtODFmT3N1YA7ZqUnaBweVbedr4K4cqxOlWAPjIw==",
+      "dev": true,
+      "requires": {
+        "doctrine": "2.0.2",
+        "has": "1.0.1",
+        "jsx-ast-utils": "2.0.1",
+        "prop-types": "15.6.0"
+      }
+    },
     "eslint-scope": {
       "version": "3.7.1",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-3.7.1.tgz",
@@ -7625,6 +7950,15 @@
         }
       }
     },
+    "jsx-ast-utils": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/jsx-ast-utils/-/jsx-ast-utils-2.0.1.tgz",
+      "integrity": "sha1-6AGxs5mF4g//yHtA43SAgOLcrH8=",
+      "dev": true,
+      "requires": {
+        "array-includes": "3.0.3"
+      }
+    },
     "jszip": {
       "version": "2.6.1",
       "resolved": "https://registry.npmjs.org/jszip/-/jszip-2.6.1.tgz",
@@ -8105,6 +8439,12 @@
       "integrity": "sha1-eeTriMNqgSKvhvhEqpvNhRtfu1U=",
       "dev": true
     },
+    "lodash.isplainobject": {
+      "version": "4.0.6",
+      "resolved": "https://registry.npmjs.org/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz",
+      "integrity": "sha1-fFJqUtibRcRcxpC4gWO+BJf1UMs=",
+      "dev": true
+    },
     "lodash.keys": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/lodash.keys/-/lodash.keys-3.1.2.tgz",

package.json

@@ -7,7 +7,9 @@
   "bugs": {
     "url": "https://github.com/mozilla/notes/issues"
   },
-  "engines" : { "node" : ">=8" },
+  "engines": {
+    "node": ">=8"
+  },
   "dependencies": {
     "@ckeditor/ckeditor5-autoformat": "vladikoff/ckeditor5-autoformat#fix-numbered-list",
     "@ckeditor/ckeditor5-basic-styles": "^1.0.0-alpha.2",
@@ -37,6 +39,7 @@
   "devDependencies": {
     "babel-core": "^6.26.0",
     "babel-loader": "^7.1.2",
+    "babel-minify-webpack-plugin": "^0.2.0",
     "babel-preset-env": "^1.6.1",
     "babel-preset-react": "^6.24.1",
     "babel-preset-stage-2": "^6.24.1",
@@ -46,6 +49,8 @@
     "copy-webpack-plugin": "^4.3.1",
     "cross-spawn": "^5.1.0",
     "eslint": "^4.0.0",
+    "eslint-plugin-jsx-a11y": "^6.0.3",
+    "eslint-plugin-react": "^7.6.1",
     "fetch-mock": "^5.12.2",
     "fs-extra": "^4.0.1",
     "karma": "^1.7.1",