sendTransaction method
Implementation
Future<String> sendTransaction(String signedTx) async {
final signedTxWithoutPrefix = signedTx.replaceFirst('0x', '');
final signedTxBytes = HEX.decode(signedTxWithoutPrefix) as Uint8List;
final txHash = await _web3Client.sendRawTransaction(signedTxBytes);
return Future.value(txHash);
}