Fix Websocket Bugs

[AlexNi245]

Sometimes, the WebSocket connection between the delivery service and the web client does not function properly. As a result, messages can only be fetched from the delivery service after a page reload, instead of being instantly delivered via WebSocket.

The cause of this issue is still unclear, but we need to monitor it closely.

Steps to (occasionally) reproduce the issue:

1. Open DM3 in two separate sessions.
2. Send messages back and forth.
3. One client can receive messages, while the other cannot.

[malteish]

https://github.com/user-attachments/assets/4480d6bf-d01e-4653-9fda-d6175272fa49
demo of what it looks like