Enhance the UI of the game

[amarlearning]

Enhance the UI of the game and update the snake and the apple image.

[maximepiard]

Maybe I can try to do this ?
I'm not very familiar with pygame but I think I can give it a makeover if you want.

[brucecantarim]

Hey, here's my contribution, made these with aseprite.

Cheers!

[Shaedil]

Hello, I've contributed to your issue and I hope you use them. Thank you and good night.

[codegateau]

Does somebody forgot to add background image?

[amarlearning]

@codegateau that would be great! would you like to do that ?