Ensure that extra cards can't be moved to the table after the 1. card has been played

[sydseter]

When a card is played, it's still possible to move an additional card onto the playing table. It doesn't have an effect, but it's a bit disturbing UX wise.

[Mysterio-17]

@sydseter, I'm interested in working on this issue, can you assign it to me ?

[sydseter]

You have been assigned. Thank you for your time.