fix blank line when settings are open

templates/js/script.php

@@ -171,6 +171,21 @@ if ($_['always-displayed']) {
                 sideMenuFocus()
             }
         })
+
+        const sideMenuObserver = new MutationObserver((e) => {
+            if (body.getAttribute('id') !== 'body-settings') {
+                return
+            }
+
+            body.classList.toggle('body-settings-side-menu', sideMenu.classList.contains('open'))
+        })
+
+        sideMenuObserver.observe(sideMenu, {
+            attributes: true,
+            attributeFilter: ['class'],
+            childList: false,
+            characterData: false
+        })
     })
 
     body.appendChild(sideMenuContainer)