Allow cards to be aligned, when multiples are selected#32

Allow cards to be aligned, when multiples are selected. Horizontal, or vertical centres, as a minimum.

Sounds good! Will add to our to-do list~

Probably best related to this ticket, After the ability to set the optimal height for each card in the multi-selection (i.e. for a note, reduce the height of the card to lose any whitespace, or increase the height of the card to lose the scrollbar), followed by an operation to equi-space.