fix prevent chevron from inheriting italic style in hidden entries

Add font-style: normal to .tree-chevron so the collapsible toggle character remains upright when inside .tree-hidden (italic) list items.

Commit
104fa61607d9f81ab0c1fecd544e8b92c7943eee
Author
Marius Peter <dev@marius-peter.com>
Author date
Committer
Marius Peter <dev@marius-peter.com>
Committer date
lib/static/styles.css
index 44bdf646..947ae25c 100644..100644
@@ -805,6 +805,7 @@
805 805 width: 1.6em;
806 806 height: 1.6em;
807 807 font-size: 1.1em;
808 Added: font-style: normal;
808 809 color: #b0b0b0;
809 810 background-color: #2a2a2a;
810 811 border-radius: 50%;