Restore AOSP dimens.

Partial revert of commit fb00422 because:
1. this is what overlays are for
2. size matters.

Change-Id: I319a5fa1fd4b7cbd3e4e8ed3aa2e20e6b7cbac38
space: the final frontier

someting has been "not quite right" with the keyboard for a while... so set phasers to kill and pwn spacebar repeatability.

reduce an unnecessarily-redundant bit of the vanir spacebar branding, and restore an animation there too.

Change-Id: I78ca70937919362f94b69f4bc1e5bf6fa0b420c5