Update Deck proxy to instantiate correct data
Update Deck proxy to instantiate correct data

The deck proxy was instantiating its cards using a plain array data
structure, but in the Deck model component it's expected a OrderedMap
component to represent the cards data. This issue was resolved only
changing the cards instantiation, with no side effects in the whole app.

nwsapps/flashcards,nwsapps/flashcards