feat: remove tuple package, use record syntax for get questions api

lib/page/forum/quiz.dart

@@ -74,8 +74,8 @@ class OTQuizWidgetState extends State<OTQuizWidget> {
                 onPressed: () async {
                   final result = await ForumRepository.getInstance()
                       .getPostRegisterQuestions();
-                  questions = result.item1;
-                  version = result.item2;
+                  questions = result.$1;
+                  version = result.$2;
                   if (questions != null) {
                     indexes =
                         List.generate(questions!.length, (index) => index);

lib/repository/forum/forum_repository.dart

@@ -43,7 +43,6 @@ import 'package:dan_xi/util/io/user_agent_interceptor.dart';
 import 'package:dan_xi/util/platform_universal.dart';
 import 'package:dan_xi/widget/libraries/paged_listview.dart';
 import 'package:dio/dio.dart';
-import 'package:tuple/tuple.dart';
 
 /// The repository for forum.
 ///
@@ -834,16 +833,16 @@ class ForumRepository extends BaseRepositoryWithDio {
     return resp.statusCode;
   }
 
-  Future<Tuple2<List<QuizQuestion>?, int>> getPostRegisterQuestions() async {
+  Future<(List<QuizQuestion>?, int)> getPostRegisterQuestions() async {
     final Response<Map<String, dynamic>> response = await dio.get(
         "$_BASE_AUTH_URL/register/questions",
         options: Options(headers: _tokenHeader));
-    final questionList = response.data?["questions"]
+    final List<QuizQuestion>? questionList = response.data?["questions"]
         .map((e) => QuizQuestion.fromJson(e))
         .toList()
         .cast<QuizQuestion>();
     final int version = response.data?["version"];
-    return Tuple2(questionList, version);
+    return (questionList, version);
   }
 
   // Empty list means all-correct

pubspec.lock

@@ -1890,7 +1890,7 @@ packages:
     source: hosted
     version: "0.2.3"
   tuple:
-    dependency: "direct main"
+    dependency: transitive
     description:
       name: tuple
       sha256: a97ce2013f240b2f3807bcbaf218765b6f301c3eff91092bcfa23a039e7dd151

pubspec.yaml

@@ -1,10 +1,10 @@
 name: dan_xi
 description: Maybe the best all-rounded service app for Fudan University students.
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+publish_to: "none" # Remove this line if you wish to publish to pub.dev
 version: 1.4.4+341
 
 environment:
-  sdk: '>=3.0.0'
+  sdk: ">=3.0.0"
 
 dependencies:
   flutter:
@@ -70,8 +70,8 @@ dependencies:
   file_picker: ^8.0.6
   cached_network_image: ^3.2.1
   flutter_typeahead: ^5.2.0
-  collection: '>=1.15.0 <2.0.0'
-  meta: '>=1.3.0 <2.0.0'
+  collection: ">=1.15.0 <2.0.0"
+  meta: ">=1.3.0 <2.0.0"
   flutter_layout_grid: ^2.0.1
   flutter_js: ^0.8.0
   flutter_math_fork: ^0.7.2
@@ -108,7 +108,6 @@ dependencies:
   html: any
   cookie_jar: any
   ffi: any
-  tuple: ^2.0.2
 
 dependency_overrides:
   intl: ^0.19.0