improvements on Card learning

- First time seeing a Card, you see everything.
- You get asked the translation, then the pinyin, then the hanzi.
- When learning new Cards you just added, you see them in the order you wrote them (so if you added "one", then "the one", then "I am the one" because you want to learn the word "one", you'll see the cards in this order instead of the opposite order :-) ).