BASE changed interface

App.xaml.cs

@@ -0,0 +1,12 @@
+using System.Windows;
+
+namespace FoxBrowser;
+
+public partial class App : System.Windows.Application
+{
+    protected override void OnStartup(StartupEventArgs e)
+    {
+        base.OnStartup(e);
+        ShutdownMode = ShutdownMode.OnMainWindowClose;
+    }
+}