Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  f567c70fef5d327dc8a897105ffe2b34d03d10b8

Only show upload page action in File namespace if page doesn't already exist

Also fixing indentation of comment

Bug: 66500
Change-Id: Ib58a943b83b4c423a3876f8fef730cefc5bf052b