Touch screen support on mobile!

We added touch input! You can now play the game on your mobile phone.
Just open  the page and run the game in your browser on the phone.
- Left half of screen — Control camera
- Right half of screen — Control tongue (swipe up to extend, swipe down to retract — also used to eat sushi in 🌈 ALL YOU CAN EAT 🌈 mode)

We've also added a audio queue / bgm fade out when you are getting to hungry, so it's a bit more obvious when you are almost starving to death.