Deck Boxes in Deck Lists page should display a card art

[doriongilmore]

Describe the solution you'd like

With bootstrap a "deck row" now looks like this :

It's quite easy to add an image at the top of these boxes, would be nice to display card art of user choice.
Since we use scryfall API, a lot of work is already done : https://scryfall.com/docs/api/images
"art_crop" property is exactly what we need, we will also need the "artist" property as stated in guidelines : "List the artist name and copyright elsewhere in the same interface presenting the art crop"

• keep art_crop and artist properties in memory
• In settings tab of Deck Edition page - choose a card to display
• Update DeckList to display an image (and its artist) for each deck where configured

Additional context

Render on Untap.in : In our case the artist could be displayed in the badge instead of the deck price