Support Thrawn1 prompt card text to distinguish between top-of-deck cards

[AMMayberry1]

The Thrawn1 leader includes a property called displayText in the card display for his start-of-phase trigger (look at top card of both decks). This is intended to be rendered underneath the relevant card - in the case of Thrawn, it says "Yourself" and "Opponent" to distinguish which looked-at card is from which deck