Revert "Reduce spacing in one column layout"

This reverts commit aec07978e6.

web/themes/custom/opdavies/layouts/layout_discovery/onecol/layout--onecol.html.twig

@@ -0,0 +1,18 @@
+{#
+/**
+ * @file
+ * Theme override to display a one-column layout.
+ *
+ * Available variables:
+ * - in_preview: Whether the plugin is being rendered in preview mode.
+ * - content: The content for this layout.
+ * - attributes: HTML attributes for the layout <div>.
+ */
+#}
+{% if content %}
+  <div{{ attributes }}>
+    <div {{ region_attributes.content.addClass('space-y-10') }}>
+      {{ content.content }}
+    </div>
+  </div>
+{% endif %}