Uncaught errors reported when no workspace is open

[isc-bsaviano]

    The uncaught errors are coming from here, which I'm pretty sure is unrelated to this PR:

https://github.com/intersystems-community/vscode-objectscript/blob/225df7689c499c792174464f3f2f04bf8da74a8a/src/utils/index.ts#L364-L369

Originally posted by @isc-bsaviano in https://github.com/intersystems-community/vscode-objectscript/issues/1003#issuecomment-1292594921

[isc-bsaviano]

@gjsjohnmurray This function is called in a lot of places so any fix for this would be pretty invasive. IMO the right thing to do is to return undefined here instead of throwing and to check for the undefined wherever this is called

[gjsjohnmurray]

@isc-bsaviano I agree.