Fix some bugs when connect to dApps

[haiyenvu23]

Describe the bug Fix some bugs when connect to dApps

Link dApp : https://thiendekaco.github.io/SubConnect/#/evm-wallet-info

• [ ] When perform ETH sign , can't click Approve in wallet

• [ ] Perform Sign typed data, appeared error page when click View details in wallet

• [ ] When choosing Sign typed data v4, the request cannot be sent to the wallet