Allow sorting

[sponglord]

It would be good to have a "sort alphabetically: ascending/descending" type toggle.
The use case is I want a Visa card, it's at the bottom of the list - I either have to scroll or type into the filter box (so much work! 😛)
Ideally, with a single click on the "sort" button, I could flip Visa to the top of the list

[gcatanese]

@sponglord Users can now pin favourite cards (#11) to quickly access the cards they use more often. Sorting is a good feature but not ideal when looking for cards that are in the middle.