update one more spot to use the new variable

sections/featured-product.liquid

@@ -142,14 +142,14 @@
                       {%- endif -%}
                     </div>
                   {%- endif -%}
-                  {%- if product != blank -%}
+                  {%- unless placeholder -%}
                     <div {{ block.shopify_attributes }}>
                       {%- form 'product', product -%}
                         <input type="hidden" name="id" value="{{ product.selected_or_first_available_variant.id }}">
                         {{ form | payment_terms }}
                       {%- endform -%}
                     </div>
-                  {%- endif -%}
+                  {%- endunless -%}
                 {%- when 'sku' -%}
                   <p
                     class="product__sku{% if block.settings.text_style == 'uppercase' %} caption-with-letter-spacing{% elsif block.settings.text_style == 'subtitle' %} subtitle{% endif %}{% if product.selected_or_first_available_variant.sku.size == 0 %} visibility-hidden{% endif %}"
@@ -376,11 +376,11 @@
                     render 'share-button', block: block, share_link: share_url
                   %}
                 {%- when 'variant_picker' -%}
                   {% render 'product-variant-picker',
                     product: product,
                     block: block,
                     product_form_id: product_form_id
                   %}
                 {%- when 'buy_buttons' -%}
                   {%- render 'buy-buttons',
                     block: block,
@@ -469,7 +469,7 @@
     if product.selected_or_first_available_variant.featured_media
       assign seo_media = product.selected_or_first_available_variant.featured_media
     else
       assign seo_media = product.featured_media
     endif
   -%}
 
@@ -483,7 +483,7 @@
   {% endif %}
 </product-info>
 
 {% schema %}
 {
   "name": "t:sections.featured-product.name",
   "tag": "section",