Builder::BuildWidget previously relied on Qt to handle layout stretching
by implicitly setting each widget to have a stretch of 0. This is very
bad behavior, so to fix this we must set a stretch of 1 on each widget
that's added by the builder
furthermore, default and default_dark did not properly define a min-width or min-height for QComboBox. This caused the platform theme to take over sizing which is NOT GOOD and should basically be avoided always
Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2786
Reviewed-by: MaranBr <maranbr@eden-emu.dev>