* ui: reset activity icon after viewing error
* refactor: improve ActivityPanel error acknowledgment logic
Replaced boolean errorAcknowledged state with acknowledgedError string state to track which specific error was acknowledged. This prevents icon flickering when error messages change and simplifies the logic by removing the need for useEffect.
Key changes:
- Changed from errorAcknowledged boolean to acknowledgedError string state
- Added derived isErrorVisible computed value for cleaner logic
- Removed useEffect dependency on scanStatus.error changes
- Updated handleMenuOpen to store actual error string instead of boolean flag
- Fixed test mock to return proper error state matching test expectations
This change addresses code review feedback and follows React best practices by using derived state instead of imperative effects.
a30fa478ac