add type declaration for vitePreprocess reexport (#8053)

* add declaration for vitePreprocess reexport

* changeset

Author: gtm-nayan

.changeset/violet-donuts-share.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+add declaration for vitePreprocess reexport

packages/kit/types/ambient.d.ts

@@ -434,4 +434,5 @@ declare module '@sveltejs/kit/vite' {
 	 * Returns the SvelteKit Vite plugins.
 	 */
 	export function sveltekit(): Promise<Plugin[]>;
+	export { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
 }