Available in a git repository branch.
Branch: feature/15355-po-plugin-disable-languages
Author: ?hefee

po_disabled_languages is used to disable languages on the website. It can be used to prepare new translations, while it will hide those from the end-user. More precisely, PO files for these languages are updated normally, however, HTML creation will be disabled and no reference to these translations will be visible on the website.

See also downstream bug report in tails: https://labs.riseup.net/code/issues/15355