Description
Introduce a subtler transition between the article toolbar and the find in page field and keyboard that appears when find in page is triggered and closed.

Currently:
At the moment the keyboard appears as another layer that covers the article toolbar icons.

Proposed:
The keyboard is on the same plane as the icons, which animate off the top of the toolbar as if 'pushed' out by the find-in-page keyboard.

Video showing this animation is here:
https://youtu.be/gZxZKiRoUlY