Generate package.json with "type": "module"

[Ionaru]

Several NX plugins use the createPackageJson function from nx/src/plugins/js/package-json/create-package-json.ts, but this function is not capable of generating a package.json file with "type": "module", locking any output to commonjs.

Since ESM is the official JavaScript standard now, and Node.js supports it since 2019-2020, project output should use this system.