Updated mediawiki/extensions
Project: mediawiki/extensions/ContentTranslation  1e5e791e3695f5844ba70d50cfd0ea7b6e906bdd

Performance fixes for preparing translation editor

Detach the editor while preparing it to boost performance

And some code cleanup

Change-Id: I9b4fafd772a43b1d6d8312d065efabccd674f14b