fix: 修复下拉选择问题

apps/desktop/src/App.tsx

@@ -10,7 +10,7 @@ import { useProjectStore } from './store/projectStore';
 import { useUIStore } from './store/uiStore';
 import { CreateProjectRequest, UpdateProjectRequest } from './types/project';
 import "./App.css";
-
+import './styles/design-system.css';
 /**
  * 主应用组件
  * 遵循 Tauri 开发规范的应用架构设计