fix: API endpoint use hosted domain

lib/src/providers/auth_provider.dart

@@ -11,7 +11,7 @@ import 'package:library_app/src/models/user.dart';
 class AuthProvider with ChangeNotifier {
   final storage = const FlutterSecureStorage();
 
-  String baseUrl = 'http://localhost:8000/api/v1';
+  String baseUrl = 'http://ilhammaulana.pythonanywhere.com/api/v1';
   String? message;
 
   User? user;

lib/src/providers/book_provider.dart

@@ -4,7 +4,7 @@ import 'package:flutter/foundation.dart';
 import 'package:http/http.dart' as http;
 
 class BookProvider with ChangeNotifier {
-  String baseUrl = 'http://localhost:8000/api/v1';
+  String baseUrl = 'http://ilhammaulana.pythonanywhere.com/api/v1';
   List<dynamic>? books;
   List<dynamic>? categories;
   Category? category;