fix: update step fromAmount using output of the previous step execution (#188)

Author: chybisov

src/execution/RouteExecutionManager.ts

@@ -142,6 +142,10 @@ export class RouteExecutionManager {
       // Update amount using output of previous execution. In the future this should be handled by calling `updateRoute`
       if (previousStep?.execution?.toAmount) {
         step.action.fromAmount = previousStep.execution.toAmount
+        if (step.includedSteps?.length) {
+          step.includedSteps[0].action.fromAmount =
+            previousStep.execution.toAmount
+        }
       }
 
       try {