state: Return full TxResponse as return value for submission endpoints #4700
Description
As part of https://github.com/celestiaorg/celestia-app/releases/tag/v6.2.5, TxResponse from txclient should now be populated with signer of the tx. This is absolutely necessary for txs submitted to transaction submission queue in tx client as it uses worker accounts to submit txs on behalf of primary account - currently user will not know which signer submitted which tx.
This should NOT BREAK, just additive.