feat: notion cookbook (#8074)

* Add notion cookbook

* Add notion draft

* Add draft notion cookbook

* Update docs/guides/notion-continue-cookbook.mdx

Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

* Change cookbook to guide using API since MCP doesn't work

* Move out of MCP cookbooks in overview

* Apply suggestion from @cubic-dev-ai[bot]

Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

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Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>
Co-authored-by: Brian Douglas <bdougie@users.noreply.github.com>