Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  0fc8a0dbfd41de472d3741c4b6a9b3e0d7262c93

Alpha: move lastmodified to bottom of article

Also:
* Remove footer border-top for all pages except for the Main page
* Rename top-bar class to last-modified-bar to match changes
* Fix phpcs warnings

Change-Id: Ifd44c5ba46f3c6e858443f5a1f92bcbe3035a586