Issue #3466032 by frankied3, johnv: Olivero Full pager template creates additional grid columns

core/themes/olivero/templates/navigation/pager.html.twig

@@ -32,7 +32,7 @@
  */
 #}
 {% if items %}
-  <nav class="pager layout--content-medium" role="navigation" aria-labelledby="{{ heading_id }}">
+  <nav class="pager" role="navigation" aria-labelledby="{{ heading_id }}">
     <{{ pagination_heading_level }} id="{{ heading_id }}" class="visually-hidden">{{ 'Pagination'|t }}</{{ pagination_heading_level }}>
     <ul class="pager__items js-pager__items">
       {# Print first item if we are not on the first page. #}