🛠️ Improve: use SvelteComponent instead of SvelteComponentTyped [#12]

`SvelteComponentTyped` is deprecated in Svelte 4.
I gonna move to Svelte 4 in the future so.

See also: sveltejs/svelte#8512

Author: Rinrin0413

src/routes/blog/articles/[slug]/Article.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
-	import type { SvelteComponentTyped } from 'svelte';
+	import type { SvelteComponent } from 'svelte';
 
-	export let body: typeof SvelteComponentTyped;
+	export let body: typeof SvelteComponent;
 </script>
 
 <article><div><svelte:component this={body} /></div></article>