fix: suppress unread dot for rooms set to Mute

[saschabuehrle]

Bug

Fixes #395 — muted rooms still showed unread dot/highlight even when notification mode was set to Mute.

Fix

• Added explicit muted-room check in RoomNavItem.
• Introduced shouldShowUnreadIndicator guard that requires:
  • room is not in RoomNotificationMode.Mute
  • room has unread data (unread or hasRoomUnread)
• Applied this guard to:
  • room row highlight state
  • unread badge/dot rendering

This keeps muted rooms visually quiet in the room list while preserving unread behavior for non-muted rooms.

Testing

• Verified logic path in src/app/features/room-nav/RoomNavItem.tsx for both muted and non-muted room notification modes.

Greetings, saschabuehrle

[7w1]

Looks good! Please create a changeset file and I'll merge it in!

[saschabuehrle]

Thanks for the review. I added the requested changeset file in this branch:\n- .changeset/fix-muted-room-unread-indicator.md\n\nPlease take another look when you have a moment.\n\nGreetings, saschabuehrle