Enable view focus

Author: tugorez

lib/web_ui/lib/src/engine/platform_dispatcher/view_focus_binding.dart

@@ -16,7 +16,7 @@ final class ViewFocusBinding {
   ///
   /// DO NOT rely on this bit as it will go away soon. You're warned :)!
   @visibleForTesting
-  static bool isEnabled = false;
+  static bool isEnabled = true;
 
   final FlutterViewManager _viewManager;
   final ui.ViewFocusChangeCallback _onViewFocusChange;