Fix walletconnect-provider signerAddress check

[nop33]

The params of the alph_signAndSubmitChainedTx is an array and not an object. Thus, the check in the request method always fails with

Cannot request without signerAddress

See:

alephium-web3/packages/walletconnect/src/provider.ts

Lines 414 to 417 in b4c8438

	const signerAddress = args.params?.signerAddress
	if (typeof signerAddress === 'undefined') {
	throw new Error('Cannot request without signerAddress')
	}

[lucifer1017]

This is an easy task, let me handle this for you.

[nop33]

Closed by #518