Adjusted Featured Collection placeholders to work with any number of …

…desktop columns (#3182)

* Adjusted featured collection placeholders to work with any number of desktop columns

sections/featured-collection.liquid

@@ -98,15 +98,21 @@
             %}
           </li>
         {%- else -%}
-          {%- for i in (1..4) -%}
+          {%- for i in (1..section.settings.columns_desktop) -%}
             <li
               class="grid__item{% if settings.animations_reveal_on_scroll %} scroll-trigger animate--slide-in{% endif %}"
               {% if settings.animations_reveal_on_scroll %}
                 data-cascade
                 style="--animation-order: {{ forloop.index }};"
               {% endif %}
             >
-              {%- assign placeholder_image = 'product-apparel-' | append: forloop.rindex -%}
+              {% liquid
+                assign ridx = forloop.rindex
+                if ridx == 5
+                  assign ridx = 1
+                endif
+              %}
+              {%- assign placeholder_image = 'product-apparel-' | append: ridx -%}
               {% render 'card-product',
                 show_vendor: section.settings.show_vendor,
                 media_aspect_ratio: section.settings.image_ratio,