docs: reorganize the sidebar

[avasisht23]

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?

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PR-Codex overview

Detailed summary

• Fixed a typo in the comment of the sendTransaction function.
• Fixed a typo in the comment of the createMagicSigner function.
• Fixed a typo in the comment of the createWalletClient function.
• Fixed a typo in the comment of the getAuthDetails function.
• Fixed a typo in the comment of the dropAndReplaceUserOperation function.
• Fixed a typo in the comment of the verifyEIP6492Signature function.
• Fixed a typo in the comment of the sendTransactions function.
• Updated a broken link in the comment of the checkGasSponsorshipEligibility function.
• Updated a broken link in the comment of the SimpleSmartContractAccount class.
• Updated a broken link in the comment of the sendTransaction function.
• Updated a broken link in the comment of the sendTransactions function.
• Updated a broken link in the comment of the checkGasSponsorshipEligibility function.
• Updated a broken link in the comment of the SimpleSmartContractAccount class.

The following files were skipped due to too many changes: site/packages/aa-core/provider/types/userOperationOverrides.md, site/overview/package-overview.md, site/overview/getting-started.md, README.md, site/smart-accounts/signers/guides/custom-signer.md, site/smart-accounts/accounts/choosing-a-smart-account.md, site/smart-accounts/signers/choosing-a-signer.md, site/smart-accounts/accounts/using-your-own.md, site/overview/introduction.md, site/overview/why-account-kit.md, site/smart-accounts/overview.md, site/smart-accounts/accounts/contributing.md, site/smart-accounts/signers/contributing.md, site/.vitepress/config.ts

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[avasisht23]

Current dependencies on/for this PR:

• main
  • PR docs: reorganize the sidebar #300 👈
    • PR feat: add fireblocks to aa-signers #301
      • PR feat: add particle to aa-signers #304
        • PR feat: add capsule to aa-signers #305
      • PR feat: add portal to aa-signers #303

This stack of pull requests is managed by Graphite.