fix: changeform messages spacing (#1527)

Author: lukasvinclav

src/unfold/templates/admin/change_form.html

@@ -52,8 +52,12 @@
                     <input type="hidden" name="{{ to_field_var }}" value="{{ to_field }}">
                 {% endif %}
 
-                {% include "unfold/helpers/messages/errornote.html" with errors=errors %}
-                {% include "unfold/helpers/messages/error.html" with errors=adminform.form.non_field_errors %}
+                {% if errors or adminform.form.non_field_errors %}
+                    <div class="flex flex-col gap-4 *:mb-0">
+                        {% include "unfold/helpers/messages/errornote.html" with errors=errors %}
+                        {% include "unfold/helpers/messages/error.html" with errors=adminform.form.non_field_errors %}
+                    </div>
+                {% endif %}
 
                 {% block field_sets %}
                     {% with has_conditional_display=adminform.model_admin.conditional_fields %}