Updated mediawiki/extensions
Project: mediawiki/extensions/TwnMainPage  ab1d7454627e685ae7dc0376d2cadd2484bd6b42

CSS adjustments for MainPage

Several styling changes:
* Language selection button
* Visited link color for image attribution
* Font size and alignment

Change-Id: I3142b8996f661d12e51c51a06f53d3a665f130a5