fix errors

com.unity.uiwidgets/Runtime/widgets/editable_text.cs

         public Future<bool> didPushRoute(string route) {
             return Future.value(false).to<bool>();
         }
+
+        public void didChangeAccessibilityFeatures() {
+          
+        }
+
         void _formatAndSetValue(TextEditingValue value, bool isIMEInput = false) {
             var textChanged = _value?.text != value?.text || isIMEInput;
             if (textChanged && widget.inputFormatters != null && widget.inputFormatters.isNotEmpty()) {

com.unity.uiwidgets/Runtime/widgets/widget_inspector.cs

             return Future.value(false).to<bool>();
         }
 
+        public void didChangeAccessibilityFeatures() {
+           
+        }
+
         void _selectionChangedCallback() {
             setState(() => { });
         }