refactor entire frontend

backend/app.py

@@ -209,6 +209,7 @@ class App:
             user_message = {
                 'action': 'chat-message',
                 'id': message.id,
+                'chatId': message.chat_id,
                 'time': message.time,
                 'sender': message.sender,
                 'kind': message.kind,