fix(slide-preview): list items in correct order

This change fixes the displaying of (nested) list items in the preview
pane of the editor. Previously, list items were all treated as inline
blocks and therefore nested list items were placed next to the previous
item instead of below it. Now they align properly as expected.

Signed-off-by: Erik Michelson <github@erik.michelson.eu>

public/css/slide-preview.css

@@ -44,10 +44,6 @@
   overflow: hidden;
 }
 
-.markdown-body.slides section[data-markdown] > ul {
-  display: inline-block;
-}
-
 .markdown-body.slides > section > section + section::after {
   content: '';
   position: absolute;
@@ -61,7 +57,8 @@
   display: none;
 }
 
-.markdown-body.slides ul, .markdown-body.slides ol {
+.markdown-body.slides section[data-markdown] > div:first-child > ul,
+.markdown-body.slides section[data-markdown] > div:first-child > ol {
   display: inline-block;
   text-align: left;
   margin: 0 0 0 1em;

public/docs/release-notes.md

@@ -18,6 +18,7 @@
 ### Bugfixes
 
 - Restore native browser zoom-in keyboard shortcuts in the editor ([#6244](https://github.com/hedgedoc/hedgedoc/issues/6244))
+- Nested list items render properly again in the preview pane for slides ([#6080](https://github.com/hedgedoc/hedgedoc/issues/6080))
 
 ## <i class="fa fa-tag"></i> 1.11.0 <i class="fa fa-calendar-o"></i> 2026-06-18