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>

apps/wolf_3d_cli/lib/cli_game_loop.dart

@@ -115,9 +115,8 @@ class CliGameLoop {
       return;
     }
 
-    if (bytes.contains(9)) {
-      // Tab swaps between renderers so renderer debugging stays available
-      // without restarting the process.
+    if (input.matchesRendererToggleShortcut(bytes)) {
+      // Allow dynamic renderer-switch bindings configured on the CLI input.
       _renderer = identical(_renderer, secondaryRenderer)
           ? primaryRenderer
           : secondaryRenderer;
@@ -125,7 +124,7 @@ class CliGameLoop {
       return;
     }
 
-    if (bytes.contains(116) || bytes.contains(84)) {
+    if (input.matchesAsciiThemeCycleShortcut(bytes)) {
       _cycleAsciiTheme();
       return;
     }
@@ -188,5 +187,37 @@ class CliGameLoop {
 
     engine.tick(elapsed);
     stdout.write(_renderer.render(engine));
+    _writeShortcutHintLine();
+  }
+
+  void _writeShortcutHintLine() {
+    if (!stdout.hasTerminal) {
+      return;
+    }
+
+    final int cols = stdout.terminalColumns;
+    if (cols <= 0) {
+      return;
+    }
+
+    final String hint = _buildShortcutHintText();
+    final String visible = hint.length > cols ? hint.substring(0, cols) : hint;
+    final String padded = visible.padRight(cols);
+
+    // Draw an overlay line without disturbing the renderer's cursor position.
+    stdout.write('\x1b[s\x1b[1;1H\x1b[0m\x1b[2m$padded\x1b[0m\x1b[u');
+  }
+
+  String _buildShortcutHintText() {
+    final String rendererMode = _renderer is SixelRenderer ? 'sixel' : 'ascii';
+    final String rendererHint =
+        '<${input.rendererToggleKeyLabel}> $rendererMode';
+
+    if (_renderer is AsciiRenderer) {
+      final AsciiRenderer ascii = _renderer as AsciiRenderer;
+      return '$rendererHint   <${input.asciiThemeCycleKeyLabel}> ${ascii.activeTheme.name}';
+    }
+
+    return rendererHint;
   }
 }