CMWallpapers: update translations

Change-Id: Ie7edb54018bddb15bd0189e4805b5e7c37ef0c26
Update wallpaper app UI

Patch set 2: Code format fixes
Patch set 3: Change layout names and remove whitespace
Patch set 4: I'm blind
Patch set 5: Super blind
Patch set 6: Fix code style issues

Change-Id: I019dd3679288611ebe7cb326a536ffaaeba074a2