Support for localized states/provinces based on selected language

[Adebesin-Cell]

Hi 👋,

Thanks for this great package!

I'm building a multilingual app and using iso-countries-languages to display country names based on the user's selected language. However, I also need to show the states/provinces within those countries, also localized.

Currently, it seems the package does not include subdivisions or states. I would like to request:

Feature Request:

• Add support for subdivisions (states, provinces, regions) per country
• Allow localization of subdivision names based on language code (like how country names are handled)

Example use case:

getStatesOfCountry("NG", "fr"); // returns ["Lagos", "Abuja", ...] in French