Add payments overview per credit card

[curtisy1]

It would be cool to have some kind of accounting feature that lets people look at their expenses when they open their card details. This currently requires a bit more work as I need to think about how the card display should look like in the future.

Ideally we'd want something like this:

• The current overview can stay
• Instead of toggling back/front layers on card click, navigate to a card details screen
• In the card details, enable toggling between layers
• Display an expense overview in a vertical scroll view below the card