feat(vf_tiered-list.jinja): Update to have top hr on all screen sizes

Author: petesfrench

templates/_macros/vf_tiered-list.jinja

@@ -19,7 +19,7 @@
   {%- set has_cta = cta_content|trim|length > 0 -%}
 
   <div class="u-fixed-width">
-    <hr class="u-hide--small">
+    <hr class="p-rule">
 
     {% if has_description == true -%}
       {%- if is_description_full_width_on_desktop == true -%}