Use selected Deployment's projectDir for "Select Active Configuration"

[dotNomad]

On hold waiting for #1851 and #1844

The "Select Active Configuration for Deployment" will need to be adjusted to use the new ?dir=path API query param for fetching Configuration based on the selected Deployment's parentDir

That way the VSCode select input that appears will only list valid Configurations.

When creating a new Configuration using the VSCode input, the ?dir=path will need to be used to make sure the Configuration is not created at the root dir.

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Part of the #1849 epic