improved notifyicon

added mouseenter and mouseleave events

src/Shared/HandyControlDemo_Shared/UserControl/Controls/NotifyIconDemoCtl.xaml.cs

@@ -1,4 +1,6 @@
 using System.Windows;
+using HandyControlDemo.Tools;
+using HandyControlDemo.ViewModel;
 
 namespace HandyControlDemo.UserControl
 {
@@ -7,8 +9,13 @@ namespace HandyControlDemo.UserControl
         public NotifyIconDemoCtl()
         {
             InitializeComponent();
+
+            AssemblyHelper.Register(nameof(NotifyIconDemoCtl), this);
+            Unloaded += NotifyIconDemoCtl_Unloaded;
         }
 
+        private void NotifyIconDemoCtl_Unloaded(object sender, RoutedEventArgs e) => ViewModelLocator.Instance.NotifyIconDemo.Cleanup();
+
         private void ButtonPush_OnClick(object sender, RoutedEventArgs e) => NotifyIconContextContent.CloseContextControl();
     }
 }