Tune device profiles.

* Extend page indicator so that its centered within the gap between
  the workspace items and hotseat.
* Decrease the amount of extra space we allot to the hotseat.
* Add the extra space to the hotseat bottom padding so that the hotseat icons
  are aligned to the top of the hotseat.

Bug: 78589630
Change-Id: I78c619a757d9d248874216e93376ad4ba18c8e50