Use page transition component to avoid repetition on main

src/components/PageTransition.svelte

@@ -0,0 +1,14 @@
+<script lang="ts">
+    import { fade } from 'svelte/transition'
+
+    export let refresh = ''
+</script>
+
+{#key refresh}
+<div
+    in:fade={{ duration: 400, delay: 500 }}
+    out:fade={{ duration: 400 }}
+>
+    <slot />
+</div>
+{/key}