Joffrey JAFFEUX 2f3355695e
FIX: improves reliability of last visit line in chat (#30948)
This commit does several changes:

- it moves the ownership of the last message info to the channel instead
of storing it on the message, it avoids the need to iterate over every
messages
- makes an optimistic update of the last read message id
- adds a spec to confirm this behavior
2025-01-27 10:38:41 +01:00
..