Add typings for module resolution

[KusStar]

For better developer experience

[ArunMichaelDsouza]

Hello @KusStar, thank you for your pull request.

I had a look at the changes and I noticed that the .mjs module resolution doesn't seem to be working as expected, maybe because we don't have a standard config in place. Not sure really. I tried pulling up the .mjs file in my app and it just returns an empty module {}. Can you please have a look at it if possible? Thank you.

[KusStar]

OK，I will try to fix it.