Export LanguageName type #385
Description
It would be nice for TypeScript to have a type alias for all names of default languages included in the library.
This type can then be used for langtag. A widened string literal union should be used to afford autocomplete, but also allow an arbitrary string.
import type { LanguageName } from "./languages";
type LangTag = LanguageName | (string & {});This utility type should also be used by #383