fix: isFormMode in StepsPreview

Author: kevinkim-ogp

packages/frontend/src/components/AiBuilder/components/StepsPreview.tsx

@@ -196,7 +196,7 @@ export default function StepsPreview() {
         ...location.state,
         trigger: data?.generateAiSteps?.trigger,
         actions: data?.generateAiSteps?.actions,
-        isSteps: true,
+        isFormMode: true,
         inputPrompt: {
           trigger: formData.trigger,
           actions: formData.actions,