feat(docs-page/server): catch invalid requests

[thiskevinwang]

Related PR:

• chore: reject invalid requests early dev-portal#641

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🦋 Changeset detected

Latest commit: 8642524

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hashicorp/react-docs-page	Minor

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Name	Status	Preview	Updated
react-components	✅ Ready (Inspect)	Visit Preview	Jun 20, 2022 at 5:31PM (UTC)