Relocated the "Show/Hide Geofences" toggle button from floating
position (top-right corner) to the main header toolbar.
**Changes:**
- Moved toggle button to header, positioned between Export and Admin buttons
- Converted showGeofences from local state to prop passed from parent
- Button now matches header design system (same styling as Export/Admin)
- Purple background when active, white when inactive
- Better UX: All controls now in one consistent location
**New Button Position:**
Export | Show/Hide Geofences | Admin | Logout
Much cleaner and more intuitive than the floating button!
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>