🐛 fix(ui): improve SettingsMenu layout and spacing

- Increase SettingsMenu width from 160px to 192px for better visibility
- Add whitespace-nowrap to prevent text wrapping in menu items
- Update project license to GPL-3.0

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -3,6 +3,7 @@
   "private": true,
   "version": "0.0.0",
   "type": "module",
+  "license": "GPL-3.0",
   "scripts": {
     "dev": "vite",
     "build": "vite build",