* feat: add QR Generator modal with auto-generate on input debounce
- QRGeneratorModal with dual-buffer sequential fade animation
- Auto-generate QR code on typing stop (200ms debounce)
- Clear text button on input field
- Escape key closes modal
- Register modal in PopoutService and AppSearchService
- Go backend for text QR code generation
* fix: add QR Generator toggle to Launcher DMS settings
* qr: also add qrg built in launcher plugin
---------
Co-authored-by: bbedward <bbedward@gmail.com>