Remove duplicate unread badges

[Just-Insane]

Describe the bug

Remove the duplicate unread badge from the /direct/ icon when the related DM is shown in the sidebar. If DMs from more than three rooms are in the sidebar, show the additional counts.

Reproduction

N/A - default behaviour with DM notifications

Expected behavior

No response

Platform and versions

Sable v1.7.0-dev • Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Additional context

No response