xwm: Account for shadow and frame size when positioning transient windows
xwm: Account for shadow and frame size when positioning transient windows

mchalupa/weston,sir-murray/weston,eyolfson/weston,Gnurou/weston,udoprog/weston,jonnylamb/weston,xorgy/weston,krezovic/weston,kwm81/weston,Fantu/compositor-spice,eyolfson/weston,Tarnyko/weston-xdg_surface_present,jonnylamb/weston,Fantu/compositor-spice,krezovic/weston,xorgy/weston,giucam/weston,Fantu/compositor-spice,sir-murray/weston,mchalupa/weston,udoprog/weston,Gnurou/weston,kwm81/weston,giucam/weston,Tarnyko/weston-xdg_surface_present