feat: Enhance menu rendering and input handling

- Added support for new plugins: IrondashEngineContext and SuperNativeExtensions in the Flutter plugin registrant.
- Updated CMake configuration to include new plugins.
- Introduced a new dependency, super_clipboard, in pubspec.yaml.
- Enhanced the WolfEngine to set the menu background color.
- Implemented keyboard shortcuts for renderer mode toggling and ASCII theme cycling in CLI input handling.
- Updated menu manager to include a universal menu background color.
- Refactored ASCII and Sixel renderers to utilize the new menu background color and improved header drawing logic.
- Simplified the drawing of menu options sidebars and header bars across different renderers.
- Improved the layout and centering of menu titles in the header bar.

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_dart/lib/src/menu/menu_manager.dart

@@ -93,6 +93,9 @@ class MenuManager {
   bool _prevConfirm = false;
   bool _prevBack = false;
 
+  /// Universal menu background color in 24-bit RGB used by menu screens.
+  int menuBackgroundRgb = 0x890000;
+
   WolfMenuScreen get activeMenu => _activeMenu;
 
   bool get isTransitioning => _transitionTarget != null;