Refactors most controllers and directives into classes for more organized and maintainable code

app/assets/javascripts/index.js

@@ -0,0 +1,22 @@
+//= require_tree ./app
+
+// css
+import 'sn-stylekit/dist/stylekit.css';
+import '../stylesheets/index.css.scss';
+
+// Vendor
+import 'angular';
+import '../../../vendor/assets/javascripts/angular-sanitize';
+import '../../../vendor/assets/javascripts/zip/deflate';
+import '../../../vendor/assets/javascripts/zip/inflate';
+import '../../../vendor/assets/javascripts/zip/zip';
+import '../../../vendor/assets/javascripts/zip/z-worker';
+
+import { SFItem } from 'snjs';
+
+// Set the app domain before starting the app
+SFItem.AppDomain = 'org.standardnotes.sn';
+
+// entry point
+// eslint-disable-next-line import/first
+import './app';