This change increases the visibility of unread channels to make them stand out more in drawer mode (desktop).
When a channel is unread:
- it floats to the top;
- when multiple channels are unread, they are sorted alphabetically (equal to how it’s done on mobile)
- the unread indicator blue dot moves to directly right of the channel name
* UX: increase font-size of last message + decrease emoji size
* UX: decrease size of username emoji
* UX: Mobile chat index cleanup
* UX: decrease size of chat-channel-title in thead list
