theme breaks layout on some applications

[duarm]

thanks for working on qt6ct!

I'm using qt6ct without any style sheets checked, Windows theme. Some applications are broken with it, here are some examples

pavucontrol-qt

qt6ct introduces a horizontal scrollbar, so I need to scroll in order to mute. The vanilla one adapts itself to the size of the window.

vanilla

qt6ct

mumble

qt6ct sets the "configure" floating window to monitor width and it's impossible to resize, I can resize the vanilla up to what the vanilla picture shows, then I can't resize down anymore.

vanilla

qt6ct

I had problems with a some other applications too.. It wasn't always like this if I remember correctly, some update broke it