Better organisation of windows on very large monitors.

[Misschief]

So I love OpenTTD but I play on a 3440x1440p Ultrawide monitor and it does frustrate when you click 'New Vehicles' on a depot and the buy vehicles window appears in a totally random place across the other side of the screen. Or when you're checking two or three farms served by one station to check their production levels they open in seemingly random locations across the screen. If these windows could be linked or chained in some way it would be a really good quality of life change. That's all.