chore: Remove Pieces Docs from domains.json

[mason-at-pieces]

We are migrating our docs to Docusuarus but are keeping our news site on docs.page for the time being.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
docs-page-og	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 15, 2024 3:58pm

[vercel]

@mason-at-pieces is attempting to deploy a commit to the Invertase Team on Vercel.

A member of the Team first needs to authorize it.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[Salakar]

Sad to see you go! But any feedback would be appreciated.