Now the width of the search box can increased without increasing the width of the search button. Change-Id: I0a9746c16dce44ff2a458e76a55741fcb1f7af0b
This is the final step of the process described at <https://www.mediawiki.org/wiki/Separating_skins_from_core_MediaWiki>. Corresponding core change: Idfc38503. Change-Id: I84fcf7ce6385b8323544cafe6912a00f1886d20d