Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  b6add9a17b8c14495017ec89ad49decc5f962ffe

Hide mouse cursor when buttons are faded out in fullscreen

Change-Id: Ie7bec07a9c79cb5ffde586ccd3cfdd3eac519047
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/210