Moved glitch containers and commented unused files

app/javascript/mastodon/features/notifications/containers/notification_container.js

@@ -1,3 +1,6 @@
+//  THIS FILE EXISTS FOR UPSTREAM COMPATIBILITY & SHOULDN'T BE USED !!
+//  SEE INSTEAD : glitch/components/notification/container
+
 import { connect } from 'react-redux';
 import { makeGetNotification } from '../../../selectors';
 import Notification from '../components/notification';