Fix T1525 New Append/Prepend Gengrid Item cannot be seen in viewport
Fix T1525 New Append/Prepend Gengrid Item cannot be seen in viewport

Reviewers: seoz, raster

Differential Revision: https://phab.enlightenment.org/D1392

FlorentRevest/Elementary,FlorentRevest/Elementary,rvandegrift/elementary,rvandegrift/elementary,FlorentRevest/Elementary,tasn/elementary,FlorentRevest/Elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary