feat: refactored docs structure

apps/docs/lib/utils.ts

@@ -1,7 +0,0 @@
-import { type ClassValue, clsx } from "clsx";
-import { twMerge } from "tailwind-merge";
-
-/** shadcn's class combiner: conditional classes, later Tailwind utilities win. */
-export function cn(...inputs: ClassValue[]) {
-  return twMerge(clsx(inputs));
-}