Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  896a7b4c40ea9cbeaa4cedbb063197d861dff226

Animate the metadata div to show the user it's there

"Hey! Scroll down! Yeah, you!"

Also fixes the previous arrow button, which got disappeared at some point

Bug: 58431
Change-Id: I98676ee921dc1d3b5780046eabec7415c05f8f4f