clean: remove Rellax scroll animations

- Unnecessary bloat and looked broken on certain screen sizes

src/layouts/DefaultLayout.astro

@@ -108,18 +108,4 @@ const {
       }
     </style>
   </body>
-</html>
-<script>
-  import Rellax from 'rellax';
-
-  function initRellax() {
-    var rellax = new Rellax('.rellax', {
-      center: true
-    });
-  }
-  initRellax();
-  document.addEventListener('astro:after-swap', () => {
-    initRellax();
-  })
-  
-</script>
+</html>