[AOT][CmdPal] Enable NativeAOT Compatibility for CmdPal Apps Extension (#39678)

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## Summary of the Pull Request

This PR introduces necessary changes to make the CmdPal.Apps extension
compatible with NativeAOT publishing. The main updates include:

1. Project configuration updates: Added NativeAOT-related properties to
the .csproj.

2. Native interop adjustments:

> - Introduced NativeMethods.json and used
[CsWin32](https://github.com/microsoft/cswin32) to generate P/Invoke
bindings.
> - Replaced some DllImport declarations with source-generated
[LibraryImport] for improved AOT support.

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Apps/AllAppsSettings.cs

@@ -71,7 +71,7 @@ public class AllAppsSettings : JsonSettingsManager
 
     internal static string SettingsJsonPath()
     {
-        string directory = Utilities.BaseSettingsPath("Microsoft.CmdPal");
+        var directory = Utilities.BaseSettingsPath("Microsoft.CmdPal");
         Directory.CreateDirectory(directory);
 
         // now, the state is just next to the exe