Made query refinement button usuable with trackball/dpad.

This required moving handing of suggestion clicks from SuggestionsView into the views within the list. Moving the focus between the query refinement button and the suggestion itself is done manually.

Bug: 2816727.

Change-Id: I0b69311b2d30c66a28f5447dc9e0e5f6dab3b704
8 files changed