fix: handle login

mobile-v2/lib/utils/constants/globals.dart

@@ -3,5 +3,11 @@ import 'package:flutter/material.dart';
 /// Log messages stored in the DB
 const int kLogMessageLimit = 500;
 
+/// Headers
+// Auth header
+const String kImmichHeaderAuthKey = "x-immich-user-token";
+const String kImmichHeaderDeviceModel = "deviceModel";
+const String kImmichHeaderDeviceType = "deviceType";
+
 /// Global ScaffoldMessengerKey to show snackbars
 final GlobalKey<ScaffoldMessengerState> kScafMessengerKey = GlobalKey();