[TASK] add sort element user management

frontend/main.ts

@@ -23,6 +23,7 @@ document.addEventListener("DOMContentLoaded", function () {
   addRelationMagic(<HTMLElement>document.querySelector("body"));
   reloadPage();
   setCurrentdate(<HTMLInputElement>document.querySelector("#departure"));
+  initDropdown();
 });
 
 function changeTheme() {
@@ -795,3 +796,21 @@ function replaceStrings() {
     weekday.innerHTML = weekday.innerHTML.replace("Freitag", "Markttag");
   });
 }
+
+function initDropdown() {
+  const popoverTriggerList = document.querySelectorAll('[data-dropdown]');    
+
+  popoverTriggerList.forEach((popoverTriggerEl: Element) => {
+    const id = popoverTriggerEl.getAttribute('data-dropdown');
+    
+    if (id) {
+      const element = document.getElementById(id);
+      if (element) {
+        // Toggle visibility of the dropdown when clicked
+        popoverTriggerEl.addEventListener('click', () => {
+          element.classList.toggle('hidden');
+        });
+      }
+    }
+  });
+}