WIP: Staged all changes

frontend/svelte.config.js

@@ -0,0 +1,13 @@
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte'
+
+/** @type {import("@sveltejs/vite-plugin-svelte").SvelteConfig} */
+export default {
+  // Consult https://svelte.dev/docs#compile-time-svelte-preprocess
+  // for more information about preprocessors
+  preprocess: vitePreprocess(),
+  compilerOptions: {
+    compatibility: {
+      componentApi: 4,
+    },
+  },
+}