Add a HotkeyRecorder UI component that lets users click to enter
recording mode, press a modifier+key combination, and immediately
save it as the new Quick Prompt global shortcut.
- New HotkeyRecorder component in ui/ with live modifier preview,
animated recording indicator, click-outside/Escape to cancel,
platform-aware key symbol display, and disabled state support
- Integrate into QuickPromptSettingsSection with separate enable
toggle and recorder rows
- Recorder is disabled when the global hotkey toggle is off
- Existing GlobalHotkeyService.update() re-registers automatically
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
