Prevent from winuiEx crash

## Summary of the Pull Request

This PR fixes the settings UI for the top-level command alias.



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## PR Checklist


https://github.com/user-attachments/assets/0d1e1392-0293-4482-97cb-e8e8c0ed0dd5


- [x] Closes: #41301
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issues) -->
- [ ] **Communication:** I've discussed this with core contributors
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- [ ] **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
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
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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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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wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

src/modules/cmdpal/Microsoft.CmdPal.UI.ViewModels/AliasManager.cs

@@ -107,7 +107,7 @@ public partial class AliasManager : ObservableObject
             }
 
             // Look for the alias belonging to another command, and remove it
-            if (newAlias is not null && kv.Value.Alias == newAlias.Alias)
+            if (newAlias is not null && kv.Value.Alias == newAlias.Alias && kv.Value.CommandId != commandId)
             {
                 toRemove.Add(kv.Value);
 

src/modules/powerdisplay/PowerDisplay/PowerDisplayXAML/IdentifyWindow.xaml

@@ -8,7 +8,6 @@
     IsMaximizable="False"
     IsMinimizable="False"
     IsResizable="False"
-    IsShownInSwitchers="False"
     IsTitleBarVisible="False"
     mc:Ignorable="d">
     <Grid Background="#1A000000">

src/modules/powerdisplay/PowerDisplay/PowerDisplayXAML/IdentifyWindow.xaml.cs

@@ -2,6 +2,7 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
 using System.Threading.Tasks;
 using Microsoft.UI.Windowing;
 using Windows.Graphics;
@@ -24,6 +25,17 @@ namespace PowerDisplay.PowerDisplayXAML
         {
             InitializeComponent();
             NumberText.Text = displayText;
+            try
+            {
+                this.SetIsShownInSwitchers(false);
+            }
+            catch (NotImplementedException)
+            {
+                // WinUI will throw if explorer is not running, safely ignore
+            }
+            catch (Exception)
+            {
+            }
 
             // Configure window style
             ConfigureWindow();

src/modules/powerdisplay/PowerDisplay/PowerDisplayXAML/MainWindow.xaml

@@ -15,7 +15,6 @@
     IsMaximizable="False"
     IsMinimizable="False"
     IsResizable="False"
-    IsShownInSwitchers="False"
     IsTitleBarVisible="False">
     <winuiex:WindowEx.SystemBackdrop>
         <DesktopAcrylicBackdrop />

src/modules/powerdisplay/PowerDisplay/PowerDisplayXAML/MainWindow.xaml.cs

@@ -71,6 +71,10 @@ namespace PowerDisplay
                 _hotkeyService.Initialize(this);
                 Logger.LogTrace("MainWindow constructor: HotkeyService initialized");
 
+                Logger.LogTrace("MainWindow constructor: Setting IsShownInSwitchers property");
+                this.SetIsShownInSwitchers(false);
+                Logger.LogTrace("MainWindow constructor: Set IsShownInSwitchers property successfully");
+
                 // Note: ViewModel handles all async initialization internally.
                 // We listen to InitializationCompleted event to know when data is ready.
                 // No duplicate initialization here - single responsibility in ViewModel.