Common
data class Horizontal(private val alignment: Alignment.Horizontal, private val margin: Int) :
MenuPosition.HorizontalA MenuPosition.Horizontal which horizontally aligns the menu within the window according to the given alignment.
The resulting x position will be coerced so that the menu remains within the area inside the given margin from the left and right edges of the window. If this is not possible, i.e., the menu is too wide, then it is centered horizontally instead.
