Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  055ccb8c27ac91c7b3c678f764d41478207df0f4

Styling fixes for media panel

Color and position adjustments for panel elements:
* Background
* Line separation
* License text

Change-Id: Ib8c5557503ec6a28b9761220a251cf4ac4742182