I don't know some changes....

Wino.Mail/Activation/DefaultActivationHandler.cs

@@ -1,30 +0,0 @@
-using System.Threading.Tasks;
-using Windows.ApplicationModel.Activation;
-using Wino.Views;
-
-#if NET8_0
-using Microsoft.UI.Xaml;
-using Microsoft.UI.Xaml.Controls;
-using Microsoft.UI.Xaml.Media.Animation;
-#else
-using Windows.UI.Xaml;
-using Windows.UI.Xaml.Controls;
-using Windows.UI.Xaml.Media.Animation;
-#endif
-
-namespace Wino.Activation
-{
-    internal class DefaultActivationHandler : ActivationHandler<IActivatedEventArgs>
-    {
-        protected override Task HandleInternalAsync(IActivatedEventArgs args)
-        {
-            (Window.Current.Content as Frame).Navigate(typeof(AppShell), null, new DrillInNavigationTransitionInfo());
-
-            return Task.CompletedTask;
-        }
-
-        // Only navigate if Frame content doesn't exist.
-        protected override bool CanHandleInternal(IActivatedEventArgs args)
-            => (Window.Current?.Content as Frame)?.Content == null;
-    }
-}