update frontend and switch sanitize library

frontend/vite.config.js

@@ -0,0 +1,12 @@
+import { sveltekit } from '@sveltejs/kit/vite'
+import precompileIntl from 'svelte-intl-precompile/sveltekit-plugin'
+
+/** @type {import('vite').UserConfig} */
+const config = {
+	server: {
+		port: 3000,
+	},
+	plugins: [sveltekit(), precompileIntl('locales')],
+}
+
+export default config