Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  285e1b0d8bb1c31ae56b2514d23a0aef86573f2b

Fix watchlist tabs. Protect from future changes with browser tests.

Also rename watchlist.feature to watchstar.feature to distinguish
between tests for Special:Watchlist and the watchstar

Bug: 63140
Change-Id: Ica5fa3a46f7288f0decebe849ba2ee0d0227036b