Update sites/svelte-5-preview/src/routes/docs/content/03-appendix/02-breaking-changes.md

Co-authored-by: Rich Harris <rich.harris@vercel.com>

sites/svelte-5-preview/src/routes/docs/content/03-appendix/02-breaking-changes.md

@@ -294,16 +294,10 @@ In Svelte 4, when the value of an `<img src={...}>` attribute or a `{@html ...}`
 <script>
 	import { onMount, tick } from 'svelte';
 
-	let raw_html = $state(
-		typeof window === 'undefined'
-			? '<h1>Server</h1>'
-			: '<h1>Client</h1>'
-	);
-	let src = $state(
-		typeof window === 'undefined'
-			? '/server.jpg'
-			: '/client.jpg'
-	);
+	let server = typeof window === 'undefined';
+
+	let markup = $state(server ? '<h1>Server</h1>' : '<h1>Client</h1>');
+	let src = $state(server ? '/server.jpg' : '/client.jpg');
 
 	onMount(async () => {
 		// force update