Bug 1542826 - Rebuild the debugger front-end. r=gw

This patch is the output of rebuilding the debugger frontend with a
recent npm installation. The changes to dist/ and the addition of
package-lock.json are a result of the build. The changes to package.json
and main.js were done manually to work around an incompatible change
in beufy 0.6.7 (the lib/ folder changed to dist/).

Differential Revision: https://phabricator.services.mozilla.com/D28357

--HG--
extra : moz-landing-system : lando

gfx/wr/debugger/package.json

@@ -10,7 +10,7 @@
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules"
   },
   "dependencies": {
-    "buefy": "^0.6.2",
+    "buefy": "^0.6.7",
     "vue": "^2.5.11",
     "vue-material-design-icons": "^0.8.2",
     "vuex": "^3.0.1"

gfx/wr/debugger/src/main.js

@@ -1,6 +1,6 @@
 import Vue from 'vue';
 import Buefy from 'buefy';
-import 'buefy/lib/buefy.css';
+import 'buefy/dist/buefy.css';
 import "vue-material-design-icons/styles.css";
 import App from './App.vue';
 import store from './store';