Upgrade Lenis smooth scroll

src/components/SmoothScroll.svelte

@@ -10,15 +10,16 @@
     // Setup smooth scroll
     if (browser) {
         $smoothScroll = new Lenis({
-            lerp: 0.1,
+            duration: 1.2,
+            easing: (t) => (t === 1 ? 1 : 1 - Math.pow(2, -10 * t)), // https://easings.net/
             smooth: true,
             direction: 'vertical',
         })
     }
 
     // Lenis RAF
-    const update = () => {
-        $smoothScroll.raf()
+    const update = (time: number) => {
+        $smoothScroll.raf(time)
         smoothScrollRAF = requestAnimationFrame(update)
     }