fix: redirect legacy docs home URLs to docs root

[EduardF1]

Summary

Fixes #3247

Changes

• redirect /docs/home.html directly to /docs/
• redirect /docs/home directly to /docs/
• remove the intermediate hop that currently points legacy docs-home URLs at a broken route

Testing

• ran pnpm exec prettier --check packages/typescriptlang-org/src/redirects/setupRedirects.ts
• ran git diff --check
• confirmed the redirect table now sends both legacy URLs to /docs/

[EduardF1]

Friendly ping — CI checks passed. Let me know if there's anything you need changed here!

[EduardF1]

Friendly follow-up with the validation details to make review quick:

• This collapses a chained redirect. Today /docs/home.html → /docs/home → /docs is two hops; the PR makes both legacy URLs redirect in a single hop to the docs root.
• The target /docs/ matches the dominant convention for docs-root redirect targets already in setupRedirects.ts — e.g. /docs/tutorial.html, /docs/bootstrap, /docs/handbook/release-notes, and /docs/handbook/release-notes/overview all redirect to /docs/.

CLA check is green and the PR is mergeable with no conflicts against v2. Let me know if you'd prefer the trailing-slash-less /docs form for consistency with the older veryOldRedirects entries instead — easy one-line change either way.