0.1.2: Pick a card, any card

Hello there. I managed to fix quite a few bugs that were introduced in version 0.1.0.

The fixes are as follows:

• The player can't move if they die.
• Cards now fully go to the player's hand and don't get stuck in the middle of the transition.
• The fireball spell doesn't brick the whole game if the player tries to select new cards from a chest
• The difficulty grows with time... not the other way around >:)