distributeVertically
Distributes the rectangles in the list vertically within the given bounding rectangle. The rectangles are spaced evenly, ensuring an equal distance between them, while maintaining their original height and width.
Return
A new list of rectangles that are vertically distributed within the specified bounds.
Parameters
within
The bounding rectangle within which the rectangles will be vertically distributed. Defaults to the minimal bounding rectangle containing all rectangles in the list.