Update secondary (parenthetical) list item text
Originally created by @SpencerOne on #11474 (Redmine)
On the Text Language dropdown list, the secondary language (in parenthesis) could be updated to the selected language, e.g., ‘English (English)’ would theoretically update to ‘English (Inglés)’ when ‘Español (Spanish)’ is selected as the Text Language option.
Feature Branch: feature/11474-translate-locales