Fix Page transitions and scroll back to top

Might fix all the issues so far!
- start page loading on entering page transition start
- scroll back to top on leaving page transition end

src/routes/+layout.svelte

@@ -2,13 +2,13 @@
     import '../style/global.scss'
 
     import { browser } from '$app/environment'
-    import { navigating, page } from '$app/stores'
+    import { page } from '$app/stores'
     import { beforeNavigate } from '$app/navigation'
+    import { PUBLIC_ANALYTICS_KEY, PUBLIC_ANALYTICS_URL } from '$env/static/public'
     import type { PageData } from './$types'
     import { onMount, setContext } from 'svelte'
     import { pageLoading, previousPage } from '$utils/stores'
     import '$utils/polyfills'
-    import { PUBLIC_ANALYTICS_KEY, PUBLIC_ANALYTICS_URL } from '$env/static/public'
     // Components
     import SVGSprite from '$components/SVGSprite.svelte'
     import SmoothScroll from '$components/SmoothScroll.svelte'
@@ -43,10 +43,6 @@
         $previousPage = from.url.pathname
     })
 
-    // Define page loading from navigating store
-    navigating.subscribe((store: any) => {
-        store && ($pageLoading = true)
-    })
 
     onMount(() => {
         // Avoid FOUC