wp-now:Use localhost instead of 127.0.0.1

[t-hamano]

See this comment.

What?

This PR changes the URL that wp-now listens on from 127.0.0.1 to localhost.

Why?

When I run wp-now start in WSL (a Windows virtual environment), it listens on 127.0.0.1 (ipv4 address).
However, when I access the URL on the host OS, it resolves to::1 (ipv6 address), so I believe this is why the server is unreachable.

Testing Instructions

• run nx preview wp-now start
• Confirm that the console displays the expected logs: Server running at http://localhost:8881/
• Confirm that the WordPress site is displayed when accessing http://localhost:8881/.
• Conform that WordPress Address and Site Address settings are http://localhost:8881/.
• Confirm that all resources such as CSS and JS are also loaded at this URL and that no errors are output to the console.

[adamziel]

Yay, thank you @t-hamano! This looks good to me – let me also loop in @danielbachhuber and @sejas who are maintaining wp-now. A regression test would be fantastic to have here, but I can't think of a good way to add one.

[danielbachhuber]

localhost works fine for me too. Thanks @t-hamano !

[danielbachhuber]

@adamziel Do you want to land this and tag a new release before #477?

I imagine there will be some level of effort setting up a new release process for #477, which could take some time, and this would be a nice fix to get in users' hands.

[adamziel]

This is awesome @t-hamano, thank you!