Build: Change CLR projects to portable type pdb (#39992)

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fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request
Since now githubcopilot is easier to used in vscode, would like to set
up debug in vscode. Full type pdb can't be loaded in visual studio code
debugging
Change the debugging type to make it debuggable from vscode.
<img width="800" alt="image"
src="https://github.com/user-attachments/assets/86e46188-ad42-4fbf-b8af-8e0353b1c615"
/>
from:
e6049bb603/Documentation/diagnostics/portable_pdb.md

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## PR Checklist

- [ ] **Closes:** #xxx
- [ ] **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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## Validation Steps Performed
Can debug settings in vscode.

src/Common.Dotnet.CsWinRT.props

@@ -22,7 +22,7 @@
   <PropertyGroup Condition="'$(Configuration)' == 'Debug'">
     <DebugSymbols>true</DebugSymbols>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <DebugType>full</DebugType>
+    <DebugType>portable</DebugType>
     <Optimize>false</Optimize>
   </PropertyGroup>
 
@@ -43,4 +43,4 @@
       <Analyzer Remove="@(Analyzer)" Condition="%(Analyzer.NuGetPackageId) == 'Microsoft.Windows.CsWinRT'" />	  
     </ItemGroup>
   </Target>
-</Project>
+</Project>