Thread:Support/MediaWiki:Common.css/qu

How can I change the default settings of MediaWiki:Common.css/qu for all wikis using MediaWiki in Quechua? Actually I want to change the settings to I don't want to do that for each preject separately. How does it work?
 * var collapseCaption = "ocultar"; var expandCaption = "mostrar";
 * var collapseCaption = "pakay"; var expandCaption = "rikuchiy";