Break words in the category dialog
Break words in the category dialog

Of course CSS is perfectly standardized and wonderful, so we need a bunch
of duplicative and non-standard rules.

Also fix the mixin in MWCategoryWidget

Change-Id: I24da0ddb29d2886c450da362fee47d22da8e631d

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui