fix: coinbase errorcode addEthereumChain

[namgold]

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[namgold]

as 20/6/2023, I got the error like below:

{
    "code": -32603,
    "message": "Unrecognized chain ID. Try adding the chain using addEthereumChain first.",
    "data": {
        "originalError": {
            "code": 4902
        }
    },
    "stack": "Error: Unrecognized chain ID. Try adding the chain using addEthereumChain first.\n    at ...",
    "docUrl": "https://docs.cloud.coinbase.com/wallet-sdk/docs/errors?version=3.7.0&code=-32603&method=wallet_switchEthereumChain&message=Unrecognized+chain+ID.+Try+adding+the+chain+using+addEthereumChain+first."
}