Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  8cbfdf4d92f4cf646068a20ffca56c852ce0a8c1

Improve the test coverage to also check prev/next scroll

This test should now cover all the scenarios fixed in my
preceding bugfix

Bug: 59861
Change-Id: I2df6c2dac8e31186c2c976fd890aac38143391da