Inbox folder content doesn't seem to be automatically refreshed

## What Happened
I search for a duplicate of this issue but I couldn't find anything so I'm opening this one.
I left Mail running with my Inbox folder selected so I can check from time to time if there are new messages without having to close and reopen the app (since this takes a bit more time).
Unfortunately even after waiting for more than 30 minutes, new incoming messages are not automatically displayed.
To workaround this I need to select a different mail folder, go back to Inbox and then new messages will appear.

## Expected Behavior
Mail will periodically check for new emails and refresh Inbox content accordingly.

## Steps to Reproduce
1. Open Mail and select Inbox folder
2. Leave it running
3. Send yourself a new email from a different mail client
4. The new email is not displayed when received unless you select a different mail folder, and go back to Inbox or you restart the Mail app.

### Logs
N/A

## Platform Information
elementary OS 6 (Odin)
io.elementary.mail/focal,now 6.1.1+r701+pkg24~ubuntu6.1