Finish MFA v1 and refactor all tokens into separate TokenService with modified collection

backend/src/services/index.ts

@@ -3,11 +3,13 @@ import postHogClient from './PostHogClient';
 import BotService from './BotService';
 import EventService from './EventService';
 import IntegrationService from './IntegrationService';
+import TokenService from './TokenService';
 
 export {
     DatabaseService,
     postHogClient,
     BotService,
     EventService,
-    IntegrationService
+    IntegrationService,
+    TokenService
 }