Fix incorrect monitor position text on some startup cases.
Fix incorrect monitor position text on some startup cases.

When we call "grid_set" (as a result of the grid object moving or
resizing), we should update the monitor position text.

Signed-off-by: Christopher Michael <177aeddb9e34930a357ecd8dd2d21c80fe280c85@samsung.com>

FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,rvandegrift/e,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tasn/enlightenment,rvandegrift/e,rvandegrift/e,tasn/enlightenment,tasn/enlightenment