Alignment in List does not work

[hggeorgiev]

Alignment is used only as a state setter in List, but not actually used in the component.

I propose we use vertical and horizontal as possible properties for alignment:

Prop	Type	Description	Required	Default
data	Array	Data to be displayed as a list	false	[]
alignment	string	Whether the list to be vertical or horizontal	false	'vertical'
visibleRows	integer	Number of rows visible in the list	false	5