refactor: Restructure twitter app with beforeRequest hook

packages/backend/src/apps/twitter/index.ts

@@ -1,4 +1,7 @@
-export default {
+import defineApp from '../../helpers/define-app';
+import addAuthHeader from './common/add-auth-header';
+
+export default defineApp({
   name: 'Twitter',
   key: 'twitter',
   iconUrl: '{BASE_URL}/apps/twitter/assets/favicon.svg',
@@ -6,4 +9,6 @@ export default {
   supportsConnections: true,
   baseUrl: 'https://twitter.com',
   apiBaseUrl: 'https://api.twitter.com',
-};
+  primaryColor: '1da1f2',
+  beforeRequest: [addAuthHeader],
+});