fix window hidding issue

Signed-off-by: Shawn Yuan (from Dev Box) <shuaiyuan@microsoft.com>

src/settings-ui/QuickAccess.UI/QuickAccessXAML/MainWindow.xaml.cs

@@ -228,6 +228,8 @@ public sealed partial class MainWindow : WindowEx, IDisposable
             BringToForeground(_hwnd);
         }
 
+        _hasSeenInteractiveActivation = true;
+        _initialActivationHandled = true;
         Activate();
     }