We have inconsistent interface of "Select all / none / invert" buttons for lists of checkboxes.
The interface in all cases should look the same, and they all should use the same code.
Special:Search: (resources/src/mediawiki.special/mediawiki.special.search.js)
History: (ListToggle.php and resources/src/mediawiki/mediawiki.checkboxtoggle.js)
Special:Undelete: (resources/src/mediawiki.special/mediawiki.special.undelete.js)


