Project Templates default to ApplicationType="Windows Store", filtering out Desktop APIs

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### Describe the bug

Some Windows APIs are Desktop-specific (not UWP), such as Windows.AI.Actions. The Project Templates are still setting ApplicationType to "Windows Store", which in turn sets TargetPlatformIdentifier to UAP, which in turn limits what Windows API contracts are projected by C++/WinRT. This can be worked around by changing/removing the ApplicationType property, or adding the Desktop Extension SDK. But ideally, the project templates should include all Windows SDK Desktop APIs in the C++/WinRT projection header generation.

### Steps to reproduce the bug

1. Create a new app from the WinUI3 Packaged C++ project template.
2. Add #include to a source file
3. Compile and observe:
error C1083: Cannot open include file: 'winrt/Windows.AI.Actions.Provider.h': No such file or directory

### Expected behavior

No error, with all Windows SDK Desktop APIs projected

### Screenshots

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### NuGet package version

None

### Packaging type

_No response_

### Windows version

_No response_

### IDE

_No response_

### Additional context

_No response_

Start with the WinUI3 Packaged C++ project template and inspect how its ApplicationType setting produces TargetPlatformIdentifier=UAP. Reproduce the missing winrt/Windows.AI.Actions.Provider.h include, then verify that the template projects the Windows SDK Desktop APIs and the sample include compiles.

Written by the indexing model from the issue text.