Add profile in parameters, initialized page map, group, count.

lib/components/group/group_content.dart

@@ -0,0 +1,13 @@
+import 'package:flutter/material.dart';
+
+class GroupContent extends StatelessWidget {
+  const GroupContent({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('Group Page')),
+      body: const Center(child: Text('This is the Group Page')),
+    );
+  }
+}