New admin section.

src/app/(main)/admin/layout.tsx

@@ -0,0 +1,17 @@
+import { Metadata } from 'next';
+import { AdminLayout } from './AdminLayout';
+
+export default function ({ children }) {
+  if (process.env.cloudMode) {
+    return null;
+  }
+
+  return <AdminLayout>{children}</AdminLayout>;
+}
+
+export const metadata: Metadata = {
+  title: {
+    template: '%s | Admin | Umami',
+    default: 'Admin | Umami',
+  },
+};