feat(rog-control-center): Major UI/UX improvements and new features

- Add software RGB animations for static-only keyboards (rainbow, color cycle)
- Add custom fan curve control via direct sysfs for unsupported laptops
- Add real-time system status bar (CPU/GPU temps, fan speeds, power draw)
- Add tray icon tooltip with live system stats
- Add power profile change notifications (Fn+F5)
- Add dGPU status notifications
- Add ROG theme with dark palette and accent colors
- Add Screenpad, Slash, and SuperGFX page stubs
- Improve fan curve graph UI
- Various UI refinements and fixes

Co-Authored-By: Gemini <noreply@google.com>

Cargo.lock

@@ -4502,6 +4502,8 @@ dependencies = [
  "rog_dbus",
  "rog_platform",
  "rog_profiles",
+ "rog_slash",
+ "ron",
  "serde",
  "slint",
  "slint-build",