Enable search across all languages

Hi,

as mentioned in https://forum.xwiki.org/t/enable-search-across-all-languages/9842

Would it be possible to have search enabled per default across all languages?

Users (my finding) do not understand (or know) about that specific languages must be checked to be included in the search. The consequence is that users ask for articles, which are available, but not part of search results unless specific languages are activated.

Thanks