* Move footer when save button is enabled to the bottom, remove gap between notification console and right panel
* Change the way panel height is calculated
* Remove unnecessary operator
* Change condition
* Fix snapshot
* Update panel height after animation ends and use different css for showing save button to the bottom of the page
* Fix ts compile
While working on #549 I realized there were a few places where 'explorer' was only needed to expand the notifications console, so I stripped those out where it was easy.
