Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  98ce9c22c47e5c841cce89a36543f1388072d9bc

Hygiene: Fix issues preventing pre-review script from running

* Fix JSDuck warnings
* Fix package.json npm warning

Change-Id: Ic6f982e3def25514e4b84a4839a8792fd48aac5e