Enhance routing in SvelteKit project by adding new receipt-related routes, updating existing route parameters, and improving layout handling. Refactor components to streamline UI interactions and remove unused imports for better performance.

src/routes/receipts/+page.server.ts

@@ -0,0 +1,6 @@
+import type { PageServerLoad } from "./$types";
+
+export const load: PageServerLoad = async () => {
+  // Placeholder: no PocketBase receipts collection yet. Return empty list.
+  return { receipts: [] as { id: string }[] };
+};