Ideas & Enhancements
Create a "Notifications" tab on the left panel so that you can just open up the notifications section (and leave it open) and scroll through notifications in any order without constantly having to go back in for each notification
agree; and ergonomically, you have messages on the left, and a tiny icon for notifications upper right; bring them together as they are partners, similar thought patterns for users so they should be as physically close as they are conceptually close
Your sharings is very good doodle jump