More connect improvements

* Use extra route for disconnected/initial state
* Style connect screen properly
* Hide widget when connected in favor of custom UI
* Show account info in sidebar header

app/routes/application.js

@@ -1,5 +1,5 @@
 import Route from '@ember/routing/route';
+import BodyClassMixin from 'ember-body-class/mixins/body-class';
 
-export default Route.extend({
-
+export default Route.extend(BodyClassMixin, {
 });