Refactor code structure and remove redundant changes

src-old/lib/utils.ts

@@ -0,0 +1,13 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+/**
+ * Combines multiple class names into a single string, merging Tailwind CSS classes intelligently.
+ * Uses clsx for conditional class handling and tailwind-merge to resolve conflicts.
+ * 
+ * @param inputs - Class values to combine (strings, objects, arrays)
+ * @returns Merged class string with Tailwind conflicts resolved
+ */
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}