Made the right Dockerfile for Svelte (had to add a Node adapter also)

frontend/svelte.config.js

@@ -1,13 +1,7 @@
-import adapter from '@sveltejs/adapter-auto';
+import adapter from '@sveltejs/adapter-node';
 
-/** @type {import('@sveltejs/kit').Config} */
-const config = {
+export default {
 	kit: {
-		// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
-		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
-		// See https://kit.svelte.dev/docs/adapters for more information about adapters.
 		adapter: adapter()
 	}
 };
-
-export default config;