JS codestyle enhancements

app/templates/materialize/base.html.j2

@@ -1,7 +1,7 @@
 {% block doc %}
 <!DOCTYPE html>
 <html{% block html_attribs %}{% endblock html_attribs %}>
-{% block html %}
+  {% block html %}
   <head>
     {% block head %}
     <title>{% block title %}{{title|default}}{% endblock title %}</title>
@@ -40,6 +40,6 @@
     {% endblock scripts %}
     {% endblock body %}
   </body>
-{% endblock html %}
+  {% endblock html %}
 </html>
 {% endblock doc %}