+ChangeNotifier Fixes

+Signout Fixes
+

lib/models/conversations.dart

@@ -1,16 +1,28 @@
 import 'package:messaging_app/models/details.dart';
 
 class Conversations {
+  String? id;
   String chatId;
   Details details;
   DateTime? lastModified;
 
   Conversations({
+    this.id,
     required this.chatId,
     required this.details,
     this.lastModified,
   });
 
+    // Convert the details string to a Details object
+      // and parse the lastModified string to a DateTime object
+      // Note: You may need to adjust the parsing logic based on your data format
+      // For example, if _details is a JSON string, you can use json.decode to parse it
+      // and create a Details object from the parsed data.
+      // Assuming _details is a JSON string, you can use the Details.fromData method
+      // to create a Details object.
+      // Assuming _lastModified is a string in ISO 8601 format
+
+
   factory Conversations.fromData(
           String _chatId, String _details, String _lastModified) =>
       Conversations(