code_style: mark event handled for after dialog closed

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/Views/CommitMessageToolBox.axaml.cs

@@ -568,19 +568,22 @@ private async void OnOpenOpenAIHelper(object sender, RoutedEventArgs e)
                 if (vm.Staged == null || vm.Staged.Count == 0)
                 {
                     App.RaiseException(repo.FullPath, "No files added to commit!");
+                    e.Handled = true;
                     return;
                 }
 
                 var services = repo.GetPreferredOpenAIServices();
                 if (services.Count == 0)
                 {
                     App.RaiseException(repo.FullPath, "Bad configuration for OpenAI");
+                    e.Handled = true;
                     return;
                 }
 
                 if (services.Count == 1)
                 {
                     await App.ShowDialog(new ViewModels.AIAssistant(repo, services[0], vm.Staged));
+                    e.Handled = true;
                     return;
                 }
 

src/Views/Launcher.axaml.cs

@@ -179,6 +179,7 @@ protected override async void OnKeyDown(KeyEventArgs e)
                 if (e is { KeyModifiers: KeyModifiers.None, Key: Key.F1 })
                 {
                     await App.ShowDialog(new Hotkeys());
+                    e.Handled = true;
                     return;
                 }