Adjust project structure

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

@@ -0,0 +1,14 @@
+using System.Windows;
+
+namespace HandyControlDemo.UserControl
+{
+    public partial class NotifyIconDemoCtl
+    {
+        public NotifyIconDemoCtl()
+        {
+            InitializeComponent();
+        }
+
+        private void ButtonPush_OnClick(object sender, RoutedEventArgs e) => NotifyIconContextContent.CloseContextControl();
+    }
+}