- Please add description for changes you are making.
- If there is an issue related to this PR, please add the reference.

Update emsdk to 6.0.36

----
#### AI description  (iteration 1)
#### PR Classification
Dependency update

#### PR Summary
This pull request updates the Emscripten SDK to version 6.0.36 and modifies related configuration files to reflect this change.
- `NuGet.config`: Updated package sources for `dotnet-emsdk` and added new sources for `dotnet-windowsdesktop`.
- `eng/Version.Details.xml`: Updated the version and SHA for `Microsoft.NET.Workload.Emscripten.Manifest-6.0.100`.
- `eng/Versions.props`: Updated the `MicrosoftNETWorkloadEmscriptenManifest60100Version` to 6.0.36.