Layout-Anpassungen nach BS v5 Migration (#222)

layouts/shortcodes/collapsible.html

@@ -1,10 +1 @@
-<div class="container mb-0">
-  <div class="card border-primary rounded-0 hover-shadow">
-    <div class="card-body mb-0">
-      <details class="mb-0">
-      <summary class="mb-0">{{ .Get "title" }}</summary>
-      <div class="content"><p class="content">{{ .Inner }}</p></div>
-      </details>
-    </div>
-  </div>
-</div>
+{{ partial "collapsible" (dict "title" (.Get "title") "content" .Inner )}}