[css] Reduce scrollbar width on scrollable sticky elements.

admin_interface/static/admin_interface/css/admin-interface-fix.css

@@ -447,6 +447,7 @@ body.admin-interface .paginator a.showall:visited {
     border-top: none;
     border-bottom: none;
     border-left: none;
+    scrollbar-width: thin;
     /*transition: left .3s, margin-left .3s;*/
 }
 

admin_interface/static/admin_interface/css/admin-interface.css

@@ -353,6 +353,7 @@
         display: flex;
         flex-direction: column;
         overflow-y: auto;
+        scrollbar-width: thin;
         height: 100%;
         max-height: calc(100vh - 60px);
     }