Play in Browser (WebGL) now available

Hello!

You can now play Lights for Leo directly in your browser after a pesky crash-inducing bug was tracked down and squashed. The quit functionality also now works intuitively for WebGL (no longer gives an error and does nothing meaningful).

As a side note about this, I have noticed on my end that there does appear to be some audio quality issues on the browser version, I'll be looking into that when I can.

Let me know what you think.

Thank you!