chore: update svelte config

svelte.config.js

@@ -1,8 +1,8 @@
-const preprocess = require('svelte-preprocess');
-const node = require('@sveltejs/adapter-node');
+import preprocess from 'svelte-preprocess';
+import node from '@sveltejs/adapter-node';
 
 /** @type {import('@sveltejs/kit').Config} */
-module.exports = {
+export default {
 	// Consult https://github.com/sveltejs/svelte-preprocess
 	// for more information about preprocessors
 	preprocess: preprocess(),