Issue persists when the player resizes the windows smaller than their initial sizes

Argh, right, the labels aren't being resized by their respective windows, of course. I didn't realise the windows could be made smaller than their initial state. I'll fix that in the morning.

@LeeSpork Should be good now. Would you mind re-testing?

Playtest looks good 👍

Well I did notice this but I'd say this counts as a separate issue

Yes, by the looks of it we need to do a much better job at repositioning widgets in the vehicle list window. Sure, we may have to hide certain columns when the window becomes too small, but it shouldn't become unusable. That is out of scope for this PR, though, as you've surmised.