Fix shadcn utils file in js demo (#20)

Author: nicognaW

.gitignore

@@ -70,3 +70,6 @@ docs/_build/
 
 # Pyenv
 .python-version
+
+# Avoid ignoring shadcn utils
+!demo/harmony-demo/src/lib

demo/harmony-demo/src/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}