play-site: Add Game of Life to interact samples

[camh-]

Add an implementation of Conway's Game of Life to the interact
samples. While this is titled "game", it is not really a game so does
not really belong in the games section. It features a few different
modes of interaction, so let's place it there.

Link: https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life

[github-actions]

firebase-deployment for a95fc9c

• apex: https://evy-lang-stage--446-q1j7zjag.web.app
• discord: https://evy-lang-stage-discord--446-kmwpwxwf.web.app
• docs: https://evy-lang-stage-docs--446-1970oss9.web.app
• gallery: https://evy-lang-stage-gallery--446-mieuuxzj.web.app
• lab: https://evy-lang-stage-lab--446-akkakz4m.web.app
• learn: https://evy-lang-stage-learn--446-s3f5ppoo.web.app
• play: https://evy-lang-stage-play--446-ldkmu8yh.web.app

[juliaogris]

This reads so nice and runs really well, thank you!
I've tried a bit to find anything to improve, but no luck...
My only comment: this is snake_case where we have settled on
camelCase for most samples - but I'm happy to reconsider.

  🐉
    🐉
🐉🐉🐉

[camh-]

My only comment: this is snake_case where we have settled on
camelCase for most samples - but I'm happy to reconsider.

Yeah I meant to change that. For whatever reason I seem to write
snakes when writing evy. Fixed.