Contentbox Footer Layout

Closes #4675

Merge request studip/studip!3526

resources/assets/stylesheets/scss/article.scss

@@ -119,7 +119,7 @@ article.studip {
     }
 
     > footer {
-        text-align: center;
+        text-align: right;
         border-top: 1px solid var(--color--content-box-border);
         padding: $article-padding;
         margin: $article-padding (-$article-padding) (-$article-padding) (-$article-padding);