tooltips position more accurately in X in xinerama
tooltips position more accurately in X in xinerama

elm_win_screen_size_get() is broken for this use case since the tooltip actually needs the full xinerama screen geometry, which is the geometry of the root window and NOT the current screen

@fix

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