Redesign UI with shadcn

packages/frontend/src/lib/utils.ts

@@ -4,3 +4,7 @@ import { twMerge } from "tailwind-merge";
 export function cn(...inputs: ClassValue[]) {
 	return twMerge(clsx(inputs));
 }
+
+export function timeout(timeMs: number): Promise<void> {
+	return new Promise<void>((resolve) => setTimeout(resolve, timeMs));
+}