feat: drop parallax.js in favor of custom parallax code

lib/js/index.js

@@ -0,0 +1,10 @@
+// Parallax
+const depthFactor = 10; // Depth of the image wrt to the 0 z-index. 1 being at the same distance as the rest of the content and Infinity being as far away as possible.
+$(window).on('scroll', () => {
+  const movedBy = window.scrollY;
+
+  $('.parallax .parallax-img').css({
+    transform: `translateY(${movedBy / depthFactor}px)` // Move differently than the rest of the window
+  })
+})
+// /Parallax