Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  27e2db75f9aa78368e8799d1c6b4024a800174ea

Make sure the post-image div is always the same height

Otherwise it flickers and is weird and stuff.

Bug: 58431
Change-Id: Ic7d7d0bededede9b3cedb4ebd8efdcfae2209127