Move our rows wrapper to view-unformatted template which is also called

agaric/templates/views/views-view--page.html.twig

@@ -51,9 +51,8 @@
       {{ exposed }}
       {{ attachment_before }}
 
-      <div class="media-list">
       {{ rows }}
-      </div>
+
       {{ empty }}
       {{ pager }}
 

agaric/templates/views/views-view-unformatted--page.html.twig

@@ -0,0 +1,36 @@
+{#
+/**
+ * @file
+ * Default theme implementation for an unformatted view display.
+ *
+ * If the display is configured to use Display Suite's alternating view modes,
+ * column classes are added appropriate to the view modes.
+ *
+ * @see http://bulma.io/documentation/columns/basics
+ *
+ * Available variables:
+ * - title: The title of this group of rows. May be empty.
+ * - rows: A list of the view's row items.
+ *   - attributes: The row's HTML attributes.
+ *   - content: The row's content.
+ * - view: The view object.
+ * - default_row_class: A flag indicating whether default classes should be
+ *   used on rows.
+ *
+ * @see template_preprocess_views_view_unformatted()
+ * @ingroup themeable
+ */
+#}
+{#
+  View rows can be configured to have default classes per view mode. A child
+  template may define view_modes, which will be merged with the
+  default_view_modes below.
+#}
+<div class="media-list">
+{% if title %}
+  <h3{{ title_attributes }}>{{ title }}</h3>
+{% endif %}
+{% for row in rows %}
+  {{ row.content }}
+{% endfor %}
+</div>