fix: remove obsolete astro:after-swap listener

which can be triggered in Astro 5.0 even with Swup, causing duplicate initialization

src/components/Navbar.astro

@@ -61,7 +61,6 @@ let links: NavBarLink[] = navBarConfig.links.map(
 </div>
 
 <script>
-
 function switchTheme() {
     if (localStorage.theme === 'dark') {
         document.documentElement.classList.remove('dark');
@@ -102,10 +101,6 @@ function loadButtonScript() {
 }
 
 loadButtonScript();
-
-document.addEventListener('astro:after-swap', () => {
-    loadButtonScript();
-}, { once: false });
 </script>
 
 {import.meta.env.PROD && <script is:inline define:vars={{scriptUrl: url('/pagefind/pagefind.js')}}>

src/layouts/Layout.astro

@@ -337,10 +337,6 @@ function init() {
 /* Load settings when entering the site */
 init();
 
-/* Load settings before swapping */
-/* astro:after-swap event happened before swap animation */
-document.addEventListener('astro:after-swap', init);
-
 const setup = () => {
 	// TODO: temp solution to change the height of the banner
 /*