Livechat notifications (omnicanal) do not disappear

[Floflobel]

Description:

Livechat notifications (omnicanal) do not disappear. Unless you send a message from the livechat.

Steps to reproduce:

1. Send a message from RocketChat to a livechat client
2. The message is received, the livechat client opens the conversation
3. The notification badge is still there

Expected behavior:

The notification should disappear when the chat is opened.

Actual behavior:

You can see that the notification is still there while the chat is open. Even if you reload the page it doesn't change anything.

Server Setup Information:

• Version of Rocket.Chat Server: 5.3.3
• Operating System: Ubuntu 20.04.5 LTS
• Deployment Method: snap
• Number of Running Instances: 1

Client Setup Information

• Desktop App or Browser Version: Firefox 107.0
• Operating System: Linux