Allow relative paths in `typescript.tsserver.nodePath`

[mjames-c]

• VS Code Version: 1.94.2
• OS Version: MacOS

Steps to Reproduce:

1. Update workspace settings JSON typescript.tsserver.nodePath to point at a relative path to the workspace root (e.g. ./my-node-script.sh)
2. Notice that the script isn't used for invoking tsserver (typescript plugin falls back to using VSCode's inbuilt node install)

The problem occurs because asAbsoluteWorkspacePath() expects that the path to the node path is prefixed with the workspace name.

I'd expect this property to behave the same as typescript.tsdk which doesn't require the workspace name to prefixed to the relative path passed to it.

https://github.com/microsoft/vscode/blob/fe997185b5e6db94693ed6ef5456cfa4e8211edf/extensions/typescript-language-features/src/utils/relativePathResolver.ts#L9-L20

[vs-code-engineering[bot]]

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Happy Coding!