feat: Implement new status feature

lib/utils/user_status.dart

@@ -0,0 +1,21 @@
+class UserStatus {
+  String statusMsg;
+  String userId;
+  int receivedAt;
+
+  UserStatus();
+
+  UserStatus.fromJson(Map<String, dynamic> json) {
+    statusMsg = json['status_msg'];
+    userId = json['user_id'];
+    receivedAt = json['received_at'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final data = <String, dynamic>{};
+    data['status_msg'] = statusMsg;
+    data['user_id'] = userId;
+    data['received_at'] = receivedAt;
+    return data;
+  }
+}