message: fix: typo in intent name for message signing
  Ticket:
diff: @@ -2709,7 +2709,7 @@ export class Wallet implements IWallet {
  const intentOption: IntentOptionsBase = {
  custodianMessageId: params.custodianMessageId,
  reqId: params.reqId,
  - intentType: 'signmessage',
  + intentType: 'signMessage',
  isTss: true,
  };
  txRequest = await this.tssUtils!.createTxRequestWithIntentForMessageSigning(intentOption);
  