Typescript: locale type Improvement

[alex-way]

export const { t, locale, locales, loading, loadTranslations } = new i18n(config);

locale exposes a svelte store which is used to get/set the locale throughout the app. However, the type on it is weak (string).

It should be possible to infer the locale Type more strongly using the configuration provided?

[jarda-svoboda]

@alex-way this one seems to be a bit challenging as long as we need to allow user to use any string as a locale in config...

The problem is that we cannot (AFAIK) infer type directly from string[] so we would need to use generic type instead.. so it would work like this