Feature Request: Add support for localization in country and state responses

[Adebesin-Cell]

Hi 👋,

Thanks for this super useful API!

I'm currently using the /countries/positions and /countries/states endpoints to fetch country and state data.

Right now, the API returns all country and state names in English only, regardless of the user's language preferences.

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✅ Feature Request

It would be really helpful if the API could support localization by allowing a language code or locale parameter (e.g., ?locale=fr or ?lang=es) to return names in the desired language.

Example Usage:

GET /countries/positions?locale=fr

[
  { "name": "Allemagne", "id": "DE" },
  { "name": "Espagne", "id": "ES" },
  ...
]

And for states:

POST /countries/states

{
  "country": "Germany",
  "locale": "fr"
}

[
  { "name": "Bavière", "id": "BY" },
  ...
]