Fix error handling

[johnson86tw]

Error messages will still be displayed in wallet.error, and library users can decide whether to display error code 4001.

const connectError = computed(() => {
	// Ignore the error if the user rejected the connection request
	if ((<ProviderRpcError>wallet.error)?.code === 4001) {
		return null;
	}
	return wallet.error;
});

Testing Method

Connect to CoinbaseWallet, then close the modal by clicking the close button.
Connect to WalletConnect, then close the modal by clicking the close button.

Notes

To preserve the original error, including its message and code, use throw err, not throw new Error(err.message) or throw new Error(err).