Set up the right gasLimit for STX (#13891)

* Set up the right gasLimit for STX

* Trigger Build

Co-authored-by: Dan J Miller <danjm.com@gmail.com>

ui/ducks/swaps/swaps.js

@@ -915,6 +915,9 @@ export const signAndSendSwapsSmartTransaction = ({
       const smartTransactionFees = await dispatch(
         fetchSwapsSmartTransactionFees(unsignedTransaction),
       );
+      unsignedTransaction.gas = `0x${decimalToHex(
+        smartTransactionFees?.gasLimit || 0,
+      )}`;
       const uuid = await dispatch(
         signAndSendSmartTransaction({
           unsignedTransaction,