fix(Auth with GitHub): login/register fails until a 2nd attempt

Signed-off-by: Jonathan <theflametrooper@gmail.com>

backend/logic/app.js

@@ -37,7 +37,7 @@ class _AppModule extends CoreClass {
 			MailModule = this.moduleManager.modules.mail;
 			CacheModule = this.moduleManager.modules.cache;
 			DBModule = this.moduleManager.modules.db;
-			// ActivitiesModule = this.moduleManager.modules.activities;
+			ActivitiesModule = this.moduleManager.modules.activities;
 			PlaylistsModule = this.moduleManager.modules.playlists;
 			UtilsModule = this.moduleManager.modules.utils;