added fcm (device) token to login data

lib/data/services/auth_service.dart

@@ -2,6 +2,7 @@
 
 import 'dart:convert';
 
+import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:tm_app/core/utils/logger.dart';
 import 'package:tm_app/data/services/api/auth_api.dart';
@@ -24,7 +25,14 @@ class AuthService {
     required String username,
     required String password,
   }) async {
-    var data = jsonEncode({"password": password, "username": username});
+    //get device fcm token
+    final FirebaseMessaging firebaseMessaging = FirebaseMessaging.instance;
+    final fcmToken = await firebaseMessaging.getToken();
+    var data = jsonEncode({
+      "password": password,
+      "username": username,
+      "device_token": fcmToken ?? '',
+    });
 
     final result = await _networkManager.makeRequest(
       AuthApi.login,