Better tagging system for what each template uses

[SebastienGllmt]

Each template demos different things and right now it's a little hard to know what those things are. We should probably find a way to define tags inside each plugin that defines which tech they use - ideally so we can show that in the docs and in the paima-engine prompt. In the meantime, here is a list of tags I'm thinking of:

• chess: webpack, react, thirdweb
• generic: unity
• hex-battle: webpack, html5
• nft-lvlup: vite, react, ethers, typechain, wagmi, primitives
• open-world: html
• paima-dice: webpack, react, ethers, typechain
• rocker-paper-scissors: webpack, phaser
• trading-cards: webpack, react, viem, primitives
• web-2.5: vite, react