UIStackView wrong distribution if subviews are UIButton created with UIButton.Configuration
The UIStackView doesn’t have the correct .fill distribution if subviews are UIButtons created with UIButton.Configuration.
UIButton with configuration gives incorrect intrinsic content size, when not connected to debugger
We create button by initing it with a configuration and embedding it within a (horizontal) UIStackView.
We setContentHuggingPriority to required because we want the button to only take up as much space as it actually needs.