Add padding to details element in markdown

Add MR to changelog entry
Adjust to give margin bottom to details instead of last-child
Remove trailing whitespace

app/assets/stylesheets/framework/typography.scss

@@ -67,6 +67,18 @@
     max-height: calc(100vh - 100px);
   }
+  details {
+    margin-bottom: $gl-padding;
+
+    summary {
+      margin-bottom: $gl-padding;
+    }
+
+    *:first-child:not(summary) {
+      margin-top: $gl-padding;
+    }
+  }
+
   // Single code lines should wrap
   code {
     font-family: $monospace-font;

changelogs/unreleased/34338-details-element.yml

+---
+title: Add some padding to details markdown element
+merge_request: 32716
+author:
+type: fixed