Update title and metadata in index.mdx

[prutica]

Description

Issue(s) fixed

Fixes #

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Checklist

• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

External contributor checklist

• I've read the contribution guidelines.
• I've created a new issue (or assigned myself to an existing issue) describing what this PR addresses.

---

Note

Adds a new versioned docs page introducing the Smart Accounts Kit with metadata and navigational cards to key guides and partner integrations.

• New gator_versioned_docs/version-0.3.0/index.mdx with frontmatter (title, sidebar_label, description, keywords)
• Sections for Build on MetaMask Smart Accounts, Advanced Permissions (ERC-7715), and Partner integrations
• CardList links to quickstart, delegation, advanced permissions guides, and external partner docs (Viem, Arbitrum, permissionless.js, Monad)

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[vercel]

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[cursor]

Accidentally committed name breaks YAML frontmatter delimiter

The frontmatter opening delimiter has been corrupted by appending what appears to be a person's name (Ptutica Daniel Marian) directly after ---. The YAML frontmatter parser expects --- on its own line to properly delimit the frontmatter block. This will cause the documentation page to fail to parse correctly, likely breaking the page rendering entirely or displaying raw frontmatter content to users.