fix up window+screen positioning fixup so it doesnt catch other clients
fix up window+screen positioning fixup so it doesnt catch other clients

so some other clients like mpv also try to explicitly position their
windows (like centering on screen 0 ALWAYS) and this now gets caught
up in trying to detect libreoffice doing the same thing for
presentations. so only support this is the app has explicitly
requested initial positionin explicitly and then use pending configures.

tasn/enlightenment,tasn/enlightenment,tasn/enlightenment