## Summary
- Add a shared footer fade behind the floating tabs on Home, Activity,
and Search.
- Use a shared anchored popover for Activity filters and section
actions, with working section move controls.
- Polish message grouping/press states and remove the initial Search
back button.
<img width="630" height="1368" alt="Screenshot 2026-07-29 at 08 49 37"
src="https://github.com/user-attachments/assets/9e787adf-0bb3-49c6-8224-5819e8cfb1ad"
/>
### Testing
- `flutter analyze`
- `flutter test`
- Release build installed and checked on a connected iPhone
### Screenshots
A real-device Activity baseline showing the original solid footer is
attached in a PR comment. The updated review build was checked on the
connected iPhone.
---------
Signed-off-by: kenny lopez <klopez4212@gmail.com>
## Summary
- reorganize mobile settings around profile, appearance, and connection
cards
- add System/Light/Dark theme pairing, accent selection, and the Buzz
gradient theme
- align avatar badges, status editing, and supporting mobile chrome
## Test plan
- `just mobile-check`
- `just mobile-test`
## Summary
- Refine mobile navigation with icon-only tabs, haptics, a solid active
state, and spring quick actions.
- Bring Create channel and New message closer to desktop with radio
settings, keyboard submission, relay people, and wrapped recipient
chips.
- Keep both sheets draggable below the status area and prevent keyboard
overflow with many recipients.
## Testing
- `just mobile-check`
- `just mobile-test`
- Pixel 10 manual verification
