fix: docs deadlink fix

[denniswon]

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

Focus of this PR:

Update file paths and references in the codebase.

Detailed summary:

• Updated file paths and references for UserOperationOverrides type in multiple files.
• Updated file paths and references for UserOperationFeeOptions and UserOperationFeeOptionsField types in multiple files.
• Updated file path and reference for getAuthDetails method in magic/getAuthDetails.md file.
• Updated file path and reference for signTypedDataWith6492 method in aa-core/accounts/optional/signTypedDataWith6492.md file.
• Updated file path and reference for withAlchemyGasManager method in aa-alchemy/middleware/withAlchemyGasManager.md file.
• Updated file path and reference for withAlchemyEnhancedApis method in aa-alchemy/provider/withAlchemyEnhancedApis.md file.
• Updated file path and reference for withAlchemyUserOpSimulation method in aa-alchemy/provider/withAlchemyUserOpSimulation.md file.
• Updated file path and reference for convertEthersSignerToAccountSigner method in aa-ethers/utils/convertEthersSignerToAccountSigner.md file.
• Updated file path and reference for signUserOperationHash method in aa-core/accounts/optional/signUserOperationHash.md file.
• Updated file path and reference for overrides parameter in aa-core/provider/dropAndReplaceUserOperation.md, aa-core/provider/sendTransactions.md, aa-core/provider/sendTransaction.md, aa-core/provider/sendUserOperation.md, aa-core/provider/buildUserOperation.md, aa-core/provider/buildUserOperationFromTx.md, aa-core/provider/checkGasSponsorshipEligibility.md, and aa-alchemy/provider/simulateUserOperationAssetChanges.md files.
• Updated file path and reference for signUserOperationHash method in aa-core/accounts/optional/signUserOperationHash.md file.
• Updated file path and reference for Web3auth Signer section in aa-signers/web3auth/introduction.md file.
• Updated file path and reference for feeOptions parameter in aa-core/provider/constructor.md and aa-alchemy/provider/constructor.md files.
• Updated file paths and references for various types in site/.vitepress/config.ts file.

The following files were skipped due to too many changes: site/packages/aa-alchemy/provider/constructor.md, site/packages/aa-accounts/light-account/provider.md, site/packages/aa-alchemy/provider/light-account-factory.md

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[avasisht23]

lgtm, thanks