[BUG] [MGT-CHAT] Switching between chats and receiving messages can result in messages being in the wrong chat

[plasne]

Describe the bug
When receiving messages across multiple chats, those messages can get mixed up between the chats both in cache and on-screen.

This is different than #3031, though maybe related, because in this case, the cache starts stable for both chats and so the issue is not graph calls being received and processed incorrectly. Rather this might be a problem with how content is getting cached as it is received or loaded dynamically.
 
To Reproduce
To reproduce, you need a way to switch between chats. You can use ChatList in PR.

Steps to reproduce the behavior:

1. Switch to chat A in MGT
2. Switch to chat B in MGT
3. In Teams, send some messages to chat A and some to chat B
4. Switch a few times between chat A and chat B in MGT
5. Take note of the messages, there are likely some that are not in the right chat

NOTE: This is not 100% reproduceable, but is common enough.

Expected behavior
Chat messages sent to chat A are only in chat A.

Screenshots
This is a chat between Joni and Pradeep...

Here is between Adele and Joni...

Here is Joni and Pradeep in Teams...

Environment (please complete the following information):

• OS: macOS Monterey 12.7.3
• Browser: edge
• Framework: react
• Context: Web
• Version: v4
• Provider: Msal2Provider

Additional context
I am a MSFT employee and can be reached by Teams at pelasne.