Dependencies cleanup (#34011)

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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

- Removed `Vanara.PInvoke.*` packages used in Quick Accent in favor of
`Microsoft.Windows.CsWin32` that is already in use for other utilities.
- Removed `Microsoft.Windows.SDK.Contracts` package instanned only on
MWB. This is not needed:
https://learn.microsoft.com/windows/apps/desktop/modernize/desktop-to-uwp-enhance#modify-a-net-project-to-use-windows-runtime-apis
- Cleaned up obsolete packages from `Directory.Packages.props`: I
realized that uninstalling a NuGet package from all projects doesn't
remove it from `Directory.Packages.props`.

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## PR Checklist

- [ ] **Closes:** #xxx
- [ ] **Communication:** I've discussed this with core contributors
already. If 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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or any additional comments/features here -->
## 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

- Manually tested Quick Accent

src/modules/MouseWithoutBorders/App/MouseWithoutBorders.csproj

@@ -215,7 +215,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Windows.CsWinRT" />
     <PackageReference Include="Microsoft.Windows.Compatibility" />
-    <PackageReference Include="Microsoft.Windows.SDK.Contracts" />
     <PackageReference Include="StreamJsonRpc" />
     <PackageReference Include="System.Data.SqlClient" /> <!-- It's a dependency of Microsoft.Windows.Compatibility. We're adding it here to force it to the version specified in Directory.Packages.props -->
   </ItemGroup>