Merge pull request #11494 from pivanov/bug-904013

Bug 904013 - [Contacts] Replace "+" Icon in contacts for 1x, 1.5x and 2x r=samjoch

(cherry picked from commit 979b5e544b11f378a1d1c25454ce58c7e446b7e4)

Conflicts:
	apps/communications/contacts/style/app.css