CmdPal: Fix "Open location" menu item for Win32 and UWP (#42248)

## Summary of the Pull Request

This PR fixes the regression of the "Open containing folder" context
menu items:
- For Win32 apps, the command now displays the correct icon, opens the
folder containing the shortcut, and selects the file.
- For UWP apps, it sets the same icon and item title as the equivalent
command for Win32 apps.
- For both, it updates the item's title to "Open file location" to align
with the Windows 11 menu naming convention.

<img width="1612" height="1106" alt="image"
src="https://github.com/user-attachments/assets/27fa7557-862e-4453-ba7b-7ac3d0af21d2"
/>


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## PR Checklist

- [x] Closes: #42244 
- [ ] **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
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
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [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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wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/Programs/Win32Program.cs

@@ -207,7 +207,10 @@ public class Win32Program : IProgram
         });
 
         commands.Add(new CommandContextItem(
-                    new OpenFileCommand(ParentDirectory))
+                    new ShowFileInFolderCommand(!string.IsNullOrEmpty(LnkFilePath) ? LnkFilePath : FullPath)
+                    {
+                        Name = Resources.open_location,
+                    })
         {
             RequestedShortcut = KeyChords.OpenFileLocation,
         });