Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  9d031c7231157a2e56389cfb5aab007ae42fdb7c

BS223: styling + fixes

* moved footer-info to statebar
* fixed some issues with empty messages from api, led to never ending statebar

Change-Id: I5ffc2c3f920aae59bc4471affa89f627ca3f3091