Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  641b0bcdab7a721eac55120e6a151cd3c872ac16

Fix borders in main menu hover

Because both border left and top were in the `li` border top was only going
till half the big border left, thus not going completely to the left.

I've moved the border left that appears on hover to the `a` so that the li
border can expand fully.

Bug: T1161
Change-Id: I91f672403899dbb7991487e7454b7834031fed33