Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  a6f8a35ff2846284b5b39a418bd6c0790f15c6f1

Regression: Fix upload button on Special:Uploads

In stable the icon overlaps the text on Special:Uploads, this fixes
that.

Change-Id: I144129a84cc4d9c3441f548d7552cb66a1c666a1