ui: fix message.FLAG_ALERT display

packages/ui-default/templates/layout/basic.html

@@ -7,7 +7,7 @@
   {% if UserContext %}{% include "partials/header_mobile.html" %}{% endif %}
   <div class="main">
     {% for item in ui.getNodes('Notification').concat(notification or []) %}{% if item.checker(handler) %}
-      <div class="row"><blockquote class="{{ item.args.type }}">{{ _(item.name).format(item.args.args or []) }}</blockquote></div>
+      <div class="row typo"><blockquote class="{{ item.args.type }}">{{ _(item.name).format(item.args.args or [])|nl2br|safe }}</blockquote></div>
     {% endif %}{% endfor %}
     {% block content %}{% endblock %}
   </div>