atLeastContainerHeightLayout: Layouter = (
  layout,
  containerFrame,
) => {
  return layout.map(layoutInfo => ({
    ...layoutInfo,
    frame: {
      origin: layoutInfo.frame.origin,
      size: {
        width: layoutInfo.frame.size.width,
        height: Math.max(
          containerFrame.size.height,
          layoutInfo.frame.size.height,
        ),
      },
    },
  }));
}
A layouter that sets heights in this fashion:
- If a frame's height >= `containerFrame.size.height`, the frame is left unchanged.
- Otherwise, sets the frame's height to `containerFrame.size.height`.