Fix outside of body script element

Signed-off-by: Christian Kohlstedde <christian@kohlsted.de>

src/pretix/base/templates/error.html

@@ -16,6 +16,6 @@
 <div class="container">
     {% block content %}{% endblock %}
 </div>
-</body>
 <script src="{% static "pretixbase/js/errors.js" %}"></script>
+</body>
 </html>