Add types entry points to package.json

[aryaemami59]

This PR:

• Adds types entry points to package.json to comply with Node.js guidelines

[robross0606]

@aryaemami59, this package appears to be abandoned by the maintainer. Do you have any interest in publishing your fork as an actual npm library?

[aryaemami59]

@robross0606 If there is demand for it sure why not?

[robross0606]

I've been trying to get some things changed in the library for a while (you can see my open issues). And I see you've had several open PRs that were never accepted. The maintainer appears to simply be MIA. I don't know if there's a formal way in Github to take over a project or become a maintainer if the current maintainers are non-responsive.

At the very least, the package has audit vulnerabilities which could ideally be resolved.