Switch scripts to redesign

src/scripts/expanders.ts

@@ -0,0 +1,23 @@
+export default function setupExpanders() {
+    const expanders = Array.from(document.querySelectorAll("#menu .collapse-button"));
+    for (const ex of expanders) {
+        ex.addEventListener("click", e => {
+            e.preventDefault();
+            e.stopPropagation();
+            // ex.parentElement.parentElement.classList.toggle("expanded");
+            ex.closest(".submenu-item")?.classList.toggle("expanded");
+        });
+    }
+
+    const activeLink = document.querySelector("#menu a.active");
+    if (activeLink) {
+        let parent = activeLink.parentElement;
+        const mainMenu = document.getElementById("#menu");
+        while (parent && parent !== mainMenu) {
+            if (parent.matches(".submenu-item")) {
+                parent.classList.add("expanded");
+            }
+            parent = parent.parentElement;
+        }
+    }
+}