language_sort
Sort a list of language codes or map with languages on their sort key. Return a list of {Code, LanguageProps}
pairs.
LanguageProps is a map:
#{
fallback => [],
language => <<"nl">>,
language_atom => nl,
name => <<"Nederlands">>,
name_en => <<"Dutch">>,
sort_key => <<"dutch">>,
sublanguages => [
]
}