docs: fix typos

[chloefeal]

Hello, I fix some typos in docs.

Pull Request Checklist

• Did you add new tests and confirm existing tests pass? (yarn test)
• Did you update relevant docs? (docs are found in the site folder, and guidelines for updating/adding docs can be found in the contribution guide)
• Do your commits follow the Conventional Commits standard?
• Does your PR title also follow the Conventional Commits standard?
• If you have a breaking change, is it correctly reflected in your commit message? (e.g. feat!: breaking change)
• Did you run lint (yarn lint:check) and fix any issues? (yarn lint:write)
• Did you follow the contribution guidelines?

---

PR-Codex overview

This PR focuses on correcting typos and improving clarity in various Markdown files related to UI components, smart contracts, and migration guides.

Detailed summary

• Corrected the spelling of components in site/pages/react/ui-components.mdx.
• Fixed the spelling of ultimate in site/pages/index.mdx.
• Corrected Infrastructure spelling in site/pages/reference/account-kit/smart-contracts/index.mdx.
• Fixed @alchemy/aa-alchemy spelling in site/pages/migration-guide.mdx.
• Updated sponsorship spelling in the description of checkGasSponsorshipEligibility.
• Corrected multiplied to multiplied in the comment within createModularAccountAlchemyClient.

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}

[graphite-app]

How to use the Graphite Merge Queue

Add the label graphite-merge-queue to this PR to add it to the merge queue.

You must have a Graphite account in order to use the merge queue. Sign up using this link.

An organization admin has enabled the Graphite Merge Queue in this repository.

Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

[vercel]

@chloefeal is attempting to deploy a commit to the Alchemy Team on Vercel.

A member of the Team first needs to authorize it.

[howydev]

hi, thanks for creating this! we had some issue with CI that's been fixed - could you rebase it to the latest commit in main? will approve after

[chloefeal]

Hello @howydev , I have rebased. Thank you very much.

[chloefeal]

@howydev Could you please review it when you have a chance? I’d appreciate your feedback and any comments. Thank you!