End/victory screen

[Piturnah]

There should be an end screen that appears when only one player is remaining. I'm not sure exactly what this should look like so please write below if you have any ideas.

One really simple idea could just be a "Rematch!" button that starts the game again and a "Main Menu" button.

One thing I think would be cool would be the remaining player doing a victory dance animation when this screen comes up. There isn't currently any sprites in the asset pack for this. TODO discuss on Discord as I think these sprites could potentially be useful to other fish folk games too.