Bug 859296 - [Building Blocks] Update styles for input area
(cherry picked from commit 1a558e67fc686cda2ba6f84f765efdb3031bf2f4)

Conflicts:
	shared/style/input_areas.css
Bug 845097 - Contact List and Search bar update
(cherry picked from commit 817939fc85f8f81c287ee958db497a964817cae0)

Conflicts:
	shared/style_unstable/scrolling.css