Add missing translation
Add missing translation

Associated with: https://github.com/flarum/core/pull/1094
flarum/flarum-ext-english,ogioncz/flarum-ext-czech,flarum/english,balkanje/flarum-ext-bosnian1,ogioncz/flarum-ext-czech,FlarumChina/flarum-ext-simplified-chinese-pro,FlarumChina/flarum-ext-simplified-chinese-pro,raweba/flarum-ext-danish