fix: Ensure ToggleMenuFlyoutItem is reported as Toggle

src/Uno.UI/UI/Xaml/Controls/MenuFlyout/ToggleMenuFlyoutItem.cs

@@ -168,5 +168,7 @@ private void OnIsCheckedChanged(bool oldValue, bool newValue)
 		// Create ToggleMenuFlyoutItemAutomationPeer to represent the 
 		protected override AutomationPeer OnCreateAutomationPeer()
 			=> new ToggleMenuFlyoutItemAutomationPeer(this);
+
+		internal override bool HasToggle() => true;
 	}
 }