Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  3e2dda867b56cf1d4b420fdb0209ca8ecc34e605

Adjustments for invite animation

The invite animation has been adjusted to:
- Make the panel movement more subtle (reduced distance and length)
- Add an animation for the chevron and coordinate it whith th panel movement.

Change-Id: I8fbd01d23fd9bf74fc272c40acd2663f5907326a