Support language change at runtime

[ddubrava]

🚀 Feature Request

✍️ Description

type YaConfigLang =  'ru_RU' | 'en_US' | 'en_RU' | 'ru_UA' | 'uk_UA' | 'tr_TR';

interface YaConfig {
  lang?: YaConfigLang | Observable<YaConfigLang>;
}

[ddubrava]

well, it's pretty complicated to implement.

notes:

1. We need a namespace for each language, e.g. ymaps_en, ymaps_ru etc. So I guess we need to create an injection token with this string instead of a hardcoded window.ymaps. It requires a lot of changes
2. YaApiLoaderService should work with different languages. I mean a script variable is not enough. We need a map (Map<string, HTMLElementScript)
3. We need to destroy a map. Somehow components should know about config changes.

I'll give it a try. but for now, there is a hack - https://stackblitz.com/edit/change-language-at-runtime