Remove menu.hpp

include/ftxui/component/component_options.hpp

@@ -18,6 +18,8 @@ struct MenuOption {
   std::function<void()> on_change = [] {};
   /// Called when the user presses enter.
   std::function<void()> on_enter = [] {};
+
+  Ref<int> focused_entry = 0;
 };
 
 /// @brief Option for the Button component.