feature(command-status): add status:auth sub command

[erezrokah]

Describe the bug

This was introduced as a result of #1999.

Prior to #1999 the code to fail if running outside a linked site was being ignored since we used to exit early if we didn’t find a netlify.toml.

To Reproduce

1. npm install -g netlify-cli
2. netlify login
3. netlify status from a directory not linked to a site
4. See that authentication information is printed, but then an error message to run netlify link is printed

Expected behavior

To be honest - not sure if this is a real bug as I could go either way. The confusion is because ntl status handles both authentication status and site information status

Perhaps we should have a status:auth subcommand

Update

Changing this to a feature request to be able to print authentication status outside a linked directory without failing

[verythorough]

Hm, yeah, that behavior feels pretty normal to me. I suppose there could be some value in having the status:auth command that only checks auth, but I'm not sure there's enough demand to justify the effort.

Perhaps we wait and see if we get any other requests for this?

[erezrokah]

Thanks @verythorough I updated the title and description

[sarahetter]

Closing as stale. Please re-open if needed