Added an updated version

Added this new, updated version of the game. It's only playable as a download,  as I won't be replacing the web build until the entire jam is over. It's now the web version.

In the new version I changed a lot of things that were mentioned in feedback. 

-Added a main menu, it shows what buttons do and a general short description on how to play.

-Cart stats moving at a slightly slower pace and is moved to the left of the screen.

-Fire spell will also improve as the cart gets faster.  It goes up by half the amount the speed does, if it gives errors let me know.

-Edited graphics to maybe help with visibility, and slightly increased the hitbox for the floating coins.

-Moved most of the UI elements to the bottom and added keyboard input to the purchasable ones. Clicking the big coin is still just clicking.

-Added some more sound effects and one short song.

I think those are all the changes as of now. I have noticed some things here and there that can still be improved, but I'm still struggling figuring out how, so maybe those will be for my next attempt at making it better.  A person also mentioned some things that can be added for progression, but I'm still figuring that one out, maybe next time! 

Please consider leaving feedback and thank you!