feat: Create flow model and graphQL mutation

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

@@ -0,0 +1,9 @@
+import CreateTweet from './actions/create-tweet';
+
+export default class Actions {
+  createTweet: any
+
+  constructor(connectionData: any) {
+    this.createTweet = new CreateTweet(connectionData)
+  }
+}