ui-default: init

将ui-default合并至主存储库便于维护

packages/ui-default/templates/partials/header.html

@@ -0,0 +1,6 @@
+<div class="header{% if no_path_section %} mini{% endif %}">
+  <div class="header__content"><div class="row"><div class="columns">
+    <a class="header__logo" href="/" target="_self"></a>
+  </div></div></div>
+  {% include "partials/path.html" %}
+</div>