uniformMaxSubviewHeightLayout: Layouter = layout => {
  const maxHeight = Math.max(
    ...layout.map(layoutInfo => layoutInfo.frame.size.height),
  );
  return layout.map(layoutInfo => ({
    ...layoutInfo,
    frame: {
      origin: layoutInfo.frame.origin,
      size: {
        width: layoutInfo.frame.size.width,
        height: maxHeight,
      },
    },
  }));
}
A layouter that sets all frames' heights to the height of the tallest frame.