Add todo to playground template

[felixfeng33]

Checklist

• yarn typecheck
• yarn lint:fix
• yarn test
• yarn brl
• yarn changeset
• ui changelog

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Latest commit: a4d0bbb

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Name	Status	Preview	Comments	Updated (UTC)
plate	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 23, 2024 2:06pm