ensure rating does not cause a schema error

Author: davemooreuws

docs/guides/nodejs/survey-website.mdx

@@ -100,7 +100,11 @@ const SurveyForm = () => {
       const response = await fetch('/api/forms/forms/feedback', {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify(formData),
+        body: JSON.stringify({
+          ...formData,
+          // ensure rating is a number
+          rating: Number(formData.rating),
+        }),
       })
 
       if (!response.ok) throw new Error('Failed to submit')