feat: add ma v2 account to useSmartAccountClient hook

[howydev]

1. remove name from MAV2Account type
2. move MAV2Account and client out of experimental
3. add MAV2Account type to useSmartContractClient hook

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

This PR focuses on the integration and enhancement of the MAV2Account type within the account management system, including updates to client creation, state management, and documentation.

Detailed summary

• Renamed SMAV2Account to MAV2Account.
• Added MAV2Account state in store.
• Implemented reconnect logic for MAV2Account.
• Updated client import paths to remove experimental designation.
• Added type exports for MAV2Account.
• Enhanced documentation for createModularAccountV2 and createModularAccountV2Client.
• Updated account creation logic to support MAV2Account.

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