Hide empty state icon and button in landscape mode.

This is to accommodate for the case when the user
has max font size and max display size. The rest of
the empty state screen won't fit unless we hide the
icon and "Turn on work" button.

Test: manual
Fixes: 149817494
Fixes: 152274446
Change-Id: I95b90461ac36b4bbf6b0e4c4dd223e941d8c75cb