Fix TitleBar comment mistake (#25243)

src/Controls/src/Core/TitleBar/TitleBar.cs

@@ -9,7 +9,7 @@ namespace Microsoft.Maui.Controls
 	/// <br/><br/>
 	/// The standard title bar height is 32px, but can be set to a larger value.
 	/// <br/><br/>
-	/// The title bar can also be hidden by setting the <see cref="Visibility"/> property, which
+	/// The title bar can also be hidden by setting the <see cref="VisualElement.IsVisible"/> property, which
 	/// will cause the window content to be displayed in the title bar region.
 	/// </summary>
 	public partial class TitleBar : TemplatedView, ITitleBar, ISafeAreaView