chore: Do not sass-compile external apps

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

package.json

@@ -17,8 +17,8 @@
     "test": "jest",
     "test:watch": "jest --watch",
     "test:jsunit": "karma start tests/karma.config.js --single-run",
-    "sass": "sass --style compressed --load-path core/css core/css/ apps/*/css",
-    "sass:watch": "sass --watch --load-path core/css core/css/ apps/*/css",
+    "sass": "sass --style compressed --load-path core/css core/css/ $(for cssdir in $(find apps -mindepth 2 -maxdepth 2 -name \"css\"); do if ! $(git check-ignore -q $cssdir); then echo -n \"$cssdir \"; fi; done)",
+    "sass:watch": "sass --watch --load-path core/css core/css/ $(for cssdir in $(find apps -mindepth 2 -maxdepth 2 -name \"css\"); do if ! $(git check-ignore -q $cssdir); then echo -n \"$cssdir \"; fi; done)",
     "sass:icons": "babel-node core/src/icons.js",
     "cypress": "npm run cypress:component && npm run cypress:e2e",
     "cypress:component": "cypress run --component",