feat: add nextjs metadata

app/layout.tsx

@@ -1,5 +1,25 @@
+import { Metadata } from "next"
+import { env } from "env.mjs"
 import "styles/tailwind.css"
 
+export const metadata: Metadata = {
+  title: {
+    default: "Blazity | next-enterprise",
+    template: "Blazity | %s",
+  },
+  description: "Blazity next-js boilerplate for enterprise applications",
+  keywords: "next-js, next-enterprise, blazity, boilerplate, enterprise",
+  icons: "/logo.png",
+  openGraph: {
+    images: "/logo.png",
+    type: "website",
+  },
+  metadataBase: new URL(env.NEXT_PUBLIC_SITE_BASE_URL || "http://localhost:3000"),
+  twitter: {
+    images: "/logo.png",
+  },
+}
+
 export default function RootLayout({ children }: { children: React.ReactNode }) {
   return (
     <html lang="en">