fix invalid HTML message

packages/svelte/src/internal/server/dev.js

@@ -38,7 +38,7 @@ function stringify(element) {
  */
 function print_error(payload, parent, child) {
 	var message =
-		`${stringify(child)} cannot contain ${stringify(parent)}\n\n` +
+		`${stringify(parent)} cannot contain ${stringify(child)}\n\n` +
 		'This can cause content to shift around as the browser repairs the HTML, and will likely result in a `hydration_mismatch` warning.';
 
 	if ((seen ??= new Set()).has(message)) return;

packages/svelte/tests/runtime-runes/samples/invalid-html-ssr/_config.js

@@ -32,7 +32,7 @@ export default test({
 		if (variant === 'hydrate') {
 			assert.equal(
 				log[0],
-				'`<h1>` (Component.svelte:1:0) cannot contain `<p>` (main.svelte:5:0)\n\n' +
+				'`<p>` (main.svelte:5:0) cannot contain `<h1>` (Component.svelte:1:0)\n\n' +
 					'This can cause content to shift around as the browser repairs the HTML, and will likely result in a `hydration_mismatch` warning.'
 			);
 		}