Stop the trade window from stealing focus

[TSAdmin]

I lost 5 gelats once because of this. I was talking to someone (With the chatbar), so I was pressing the spacebar a lot. Suddenly this guy sends me a global trade request right when I hit the spacebar and apparently the default selection is "Accept" so by hitting Spacebar, I accepted the trade request and instantly lost 5 gelats. Having lost 5 gelats, I've instantly lost 1 month of subscription since it doesn't make up the full 300 of any month anymore, so I have 295 that are doing absolutely nothing... all because of that trade window -_-