[CmdPal] Restore focus to More button after context menu closes via escape button (#41364)

## Summary of the Pull Request

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## PR Checklist

- [x] Closes: #41363
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
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for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
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pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
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- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

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## Detailed Description of the Pull Request / Additional comments

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https://github.com/user-attachments/assets/374fd1bc-8e62-4117-a613-f0d35678e3ed

src/modules/cmdpal/Microsoft.CmdPal.UI/Controls/ContextMenu.xaml.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using CommunityToolkit.Mvvm.Messaging;
+using CommunityToolkit.WinUI;
 using Microsoft.CmdPal.Core.ViewModels;
 using Microsoft.CmdPal.Core.ViewModels.Messages;
 using Microsoft.CmdPal.UI.Messages;
@@ -115,6 +116,24 @@ public sealed partial class ContextMenu : UserControl,
         }
     }
 
+    /// <summary>
+    /// Handles Escape to close the context menu and return focus to the "More" button.
+    /// </summary>
+    private void UserControl_PreviewKeyDown(object sender, KeyRoutedEventArgs e)
+    {
+        if (e.Key == VirtualKey.Escape)
+        {
+            // Close the context menu (if not already handled)
+            WeakReferenceMessenger.Default.Send(new CloseContextMenuMessage());
+
+            // Find the parent CommandBar and set focus to MoreCommandsButton
+            var parent = this.FindParent<CommandBar>();
+            parent?.FocusMoreCommandsButton();
+
+            e.Handled = true;
+        }
+    }
+
     private void ViewModel_PropertyChanged(object? sender, System.ComponentModel.PropertyChangedEventArgs e)
     {
         var prop = e.PropertyName;