Update +page.svelte

Author: GauBen

packages/eslint-plugin-svelte/tests/fixtures/rules/valid-prop-names-in-kit-pages/valid/test001/+page.svelte

@@ -2,6 +2,7 @@
 	export let data;
 	export let errors;
 	export let form;
+  export let params;
 
 	let comment = '';