Updated mediawiki/extensions
Project: mediawiki/extensions/Translate  a852ab23f3c826fbdb20aa2a07c8941cc428a535

(bug 45688) Fix Proofread mark status not being updated

This patches modifies the way proofreading sprites are supported.
We should not rely in background-position-y since support has been
removed from Firefox and use the standard background-position instead.

Bug: 45688
Change-Id: I589daafe150eee3f26dae3a60f54cb758977f31f