Chore: Scope URLs with account_id (#601)

* Chore: Enable Users to create multiple accounts

Addresses: #402
- migrations to split roles and other attributes from users table
- make changes in code to accommodate this change

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

app/javascript/dashboard/api/inboxes.js

@@ -2,7 +2,7 @@ import ApiClient from './ApiClient';
 
 class Inboxes extends ApiClient {
   constructor() {
-    super('inboxes');
+    super('inboxes', { accountScoped: true });
   }
 }