Export all missing modules in compat (#4006)

* chore(emoji): export missing modules in compat API

* chore(flags): export missing modules in compat API

* chore(likes): export missing modules in compat API

* chore(lock): export missing modules in compat API

* chore(markdown): export missing modules in compat API

* chore(mentions): export missing modules in compat API

* chore(nicknames): export missing modules in compat API

* chore(extension-manager): export missing modules in compat API

* chore(statistics): export missing modules in compat API

* chore(sticky): export missing modules in compat API

* chore(subscriptions): export missing modules in compat API

* chore(suspend): export missing modules in compat API

* chore(tags): export missing modules in compat API

* chore(core): export missing modules in compat API

Author: DavideIadeluca

js/src/forum/compat.ts

@@ -0,0 +1,9 @@
+import NewPostNotification from './components/NewPostNotification';
+import SubscriptionMenu from './components/SubscriptionMenu';
+import SubscriptionMenuItem from './components/SubscriptionMenuItem';
+
+export default {
+  'subscriptions/components/NewPostNotification': NewPostNotification,
+  'subscriptions/components/SubscriptionMenu': SubscriptionMenu,
+  'subscriptions/components/SubscriptionMenuItem': SubscriptionMenuItem,
+};

js/src/forum/index.js

@@ -29,3 +29,9 @@ app.initializers.add('subscriptions', function () {
     });
   });
 });
+
+// Expose compat API
+import subscriptionsCompat from './compat';
+import { compat } from '@flarum/core/forum';
+
+Object.assign(compat, subscriptionsCompat);