added onboarding query parmeter

src/admin/components/onboarding-flow/nextjs/products/product-detail.tsx

@@ -34,7 +34,7 @@ const ProductDetailNextjs = ({ onNext, isComplete, data }: StepContentProps) =>
       </div>
       <div className="flex gap-2 mt-6">
         <a
-          href={`http://localhost:8000/products/${product?.handle}`}
+          href={`http://localhost:8000/products/${product?.handle}?onboarding=true`}
           target="_blank"
         >
           <Button variant="primary" size="base" isLoading={productIsLoading}>