added background images

Signed-off-by: CoyoteBringsFire <aumkara@gmail.com>
update to shuffle cards

i updated creating a new game so each game has it's own deck of cards, there is a new endpoint to shuffle the deck, and tests for everything

Signed-off-by: CoyoteBringsFire <aumkara@gmail.com>
removed images from server

Signed-off-by: CoyoteBringsFire <aumkara@gmail.com>