Now in WASM

Took a while to do this one.

WASM version is now available @ https://sudoku.dogboxmolly.com

Not a ton of changes and additions this time, just making it all work for WASM and desktop builds.

The in-game timer does not work correctly in the WASM version.

Stats also do not work in the WASM version. Trying to get that stored on the client side in the session cookie or cache somehow.

Check it out!