use package name instead of directory basename for workspace

[n1ru4l]

I think this are the relevant lines:

yarn-completion/yarn-completion.bash

Line 905 in f0d5170

workspaces+=("$(basename "$workspace_path")")

The package name of a workspace package is not always equal to the folder name. E.g. a scoped package @organisation/foobar could be located under packages/foobar.

yarn-completion only completes with foobar instead of @organisation/foobar.

Therefore yarn-completion should rely on parsing the package name from the actual package.json of the workspace package.

[dsifford]

Good point. I'll look into getting this fixed as soon as I get some free time. PRs accepted also.