refactor : 使用GetView小部件

lib/modules/home/views/home_page.dart

@@ -2,14 +2,11 @@ import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:problem_check_system/modules/home/controllers/home_controller.dart';
 
-class HomePage extends StatelessWidget {
+class HomePage extends GetView<HomeController> {
   const HomePage({super.key});
 
   @override
   Widget build(BuildContext context) {
-    // 获取控制器
-    final HomeController controller = Get.find<HomeController>();
-
     return Obx(
       () => Scaffold(
         body: controller.pages[controller.selectedIndex.value], // 根据状态显示页面