Fix: Fixed issue where resuming didn't work once it failed (#14290)

Author: hishitetsu

src/Files.App/App.xaml.cs

@@ -116,12 +116,12 @@ async Task ActivateAsync()
 		/// <summary>
 		/// Invoked when the application is activated.
 		/// </summary>
-		public void OnActivated(AppActivationArguments activatedEventArgs)
+		public async Task OnActivatedAsync(AppActivationArguments activatedEventArgs)
 		{
 			Logger.LogInformation($"The app is being activated. Activation type: {activatedEventArgs.Data.GetType().Name}");
 
 			// InitializeApplication accesses UI, needs to be called on UI thread
-			_ = MainWindow.Instance.DispatcherQueue.EnqueueOrInvokeAsync(()
+			await MainWindow.Instance.DispatcherQueue.EnqueueOrInvokeAsync(()
 				=> MainWindow.Instance.InitializeApplicationAsync(activatedEventArgs.Data));
 		}
 

src/Files.App/Program.cs

@@ -158,12 +158,12 @@ private static void Main()
 			});
 		}
 
-		private static void OnActivated(object? sender, AppActivationArguments args)
+		private static async void OnActivated(object? sender, AppActivationArguments args)
 		{
 			if (App.Current is App thisApp)
 			{
 				// WINUI3: Verify if needed or OnLaunched is called
-				thisApp.OnActivated(args);
+				await thisApp.OnActivatedAsync(args);
 			}
 		}