Follows-up 62c1d64ad0.
* Remove '.mw-indicators' animation for opacity. Was a left-over from other
elements previously stripped in 62c1d64ad0.
* '#siteNotice' no longer slides. It's hidden at the same time as '#contentSub',
'#toc', and other elements. This is an annoying jump, and we should find a
way to do it consistently and in a performant manner.
* Fix state classes added in 62c1d64ad0. During deactivation, the ve-active
class was kept for too long. This created a temporary state in which ve-active
*and* ve-deactivating were applied. This was harmless as nothing ises the
've-deactivating' class yet.
* Leaving toolbar as-is for another commit.
Bug: T89543
Change-Id: Ide49f93c45a12f2c13eb4412a9a16a82fefeb43e
60e5ac0902