fix ai chat design

ai-chat/src/app/layout.tsx

@@ -5,8 +5,11 @@ import './globals.css'
 const inter = Inter({ subsets: ['latin'] })
 
 export const metadata: Metadata = {
-  title: 'Create Next App',
-  description: 'Generated by create next app',
+  title: 'AI Chat - Mintbase Templates',
+  description: 'AI-Chat is a Next.js project that provides a chat interface with AI capabilities. It uses the Mintbase Wallet for user authentication and the OpenAI GPT-4 model for generating chat responses.',
+  openGraph: {
+    images: [ 'https://i.imgur.com/uIIL4tt.png']
+  }
 }
 
 export default function RootLayout({