refactor: use one onMount on SmoothScroll

apps/website/src/components/SmoothScroll.svelte

@@ -1,30 +1,19 @@
 <script lang="ts">
-    import { browser } from '$app/environment'
     import { onMount } from 'svelte'
     import Lenis from '@studio-freight/lenis'
     import { smoothScroll } from '$utils/stores'
 
     let smoothScrollRAF = 0
 
-
+    onMount(() => {
         // Setup smooth scroll
-    if (browser) {
         $smoothScroll = new Lenis({
             duration: 1.2,
             easing: (t: number) => Math.min(1, 1.001 - Math.pow(2, -10 * t)), // https://easings.net/
             smoothWheel: true,
             orientation: 'vertical',
         })
-    }
 
-    // Lenis RAF
-    const update = (time: number) => {
-        $smoothScroll.raf(time)
-        smoothScrollRAF = requestAnimationFrame(update)
-    }
-
-
-    onMount(() => {
         // Enable smooth scroll
         requestAnimationFrame(update)
 
@@ -34,4 +23,10 @@
             $smoothScroll.destroy()
         }
     })
+
+    // Lenis RAF
+    const update = (time: number) => {
+        $smoothScroll.raf(time)
+        smoothScrollRAF = requestAnimationFrame(update)
+    }
 </script>