add metadata

src/app/layout.tsx

@@ -4,8 +4,8 @@ import { Roboto_Slab } from 'next/font/google'
 const robotoSlab = Roboto_Slab({ subsets: ['latin'] });
 
 export const metadata = {
-  title: 'Create Next App',
+  title: 'UTF Inspector',
-  description: 'Generated by create next app',
+  description: 'Unicode character info tool',
 }
 
 export default function RootLayout({