Stop the trade window from stealing focus

[cbk1994]

The global trade window still steals focus. This is a major problem since it's now possible to initiate global trades via the playerlist (right click > Trade). When I was on Era I had to go out of my way to write a script to destroy the trade window on showing and return focus to the Graal client because players realized that if they sent trade requests to a player during a spar they could still the player's focus from the Graal window and freeze them until they click back in.

A better solution would be simply to not have the trade window steal focus, which is insanely easy to fix. Please fix it.