Enhance event listener management in BasicScripts component

- Introduced a mechanism to store and remove event listeners, ensuring old listeners are cleared before new ones are attached. This improves performance and prevents potential memory leaks.

src/components/common/BasicScripts.astro

@@ -31,16 +31,31 @@ import { UI } from 'astrowind:config';
   };
   initTheme();
 
+  // Store event listeners so they can be removed and re-attached
+  let eventListeners = [];
+
+  function removeAllEventListeners() {
+    eventListeners.forEach(({ element, event, handler }) => {
+      element.removeEventListener(event, handler);
+    });
+    eventListeners = [];
+  }
+
   function attachEvent(selector, event, fn) {
     const matches = typeof selector === 'string' ? document.querySelectorAll(selector) : selector;
     if (matches && matches.length) {
       matches.forEach((elem) => {
-        elem.addEventListener(event, (e) => fn(e, elem), false);
+        const handler = (e) => fn(e, elem);
+        elem.addEventListener(event, handler, false);
+        eventListeners.push({ element: elem, event, handler });
       });
     }
   }
 
   const onLoad = function () {
+    // Remove old event listeners before attaching new ones
+    removeAllEventListeners();
+
     let lastKnownScrollPosition = window.scrollY;
     let ticking = false;