This makes it easy to see all the activity that is happening in a more condensed view. Helps you fend off endless scrolling in the collaboration panel when trying to find the meeting room. ⚔️ https://github.com/user-attachments/assets/5b538636-5672-42a4-a831-ffe303051c84 - [X] Tests or screenshots needed? - [ ] Code Reviewed - [X] Manual QA Release Notes: - Added a `Show All Channels` button to the collab panel to filter down to only channels with participants.