public async Task <IEnumerable <LanguageKey> > CollectAlls(string appId)
{
var languages = new List <LanguageKey>();
languages.AddRange(await _appRepository.CollectAllLanguages(appId));
languages.AddRange(await _standardRepository.CollectAllLanguages(appId));
languages.AddRange(await _dynamicListRepository.CollectAllLanguages(appId));
languages.AddRange(await _chartRepository.CollectAllLanguages(appId));
languages.AddRange(await _pageRepository.CollectAllLanguages(appId));
return(languages);
}