Right Thin Sidebar Layout

help edit space_dashboard 
<body class="right-sidebar thin-sidebar d-flex flex-column h-100">
  <header>{{:header|core}}</header>
  <article class="container flex-shrink-0" role="main">{{_main|titled}}</article>
  <aside>{{:sidebar|content}}</aside>
  <footer class="footer mt-auto py-3">{{:footer|core}}</footer>
</body>