Trebuchet: Make focus animate and move faster

If you use a keyboard and hold the tab key, the focus
animation looks weird. The fix is when we focus to a new item,
jump to the item being focused out and animate from there as
opposed to animating from where the focus is currently is

ref: QRDL-978

Change-Id: I007c7566b6524dbbf748475e98ad53f9c3cbbcf5
(cherry picked from commit 4319d899)