feat: add TypeScript lessons and learning panel

- Introduced a new script to check TypeScript lesson files for errors.
- Created a main TypeScript file to render lessons and their details.
- Added lesson definitions with starter and answer codes.
- Implemented a user interface for navigating and running lessons.
- Styled the application with CSS for a better user experience.
- Updated README to reflect the new TypeScript section and usage instructions.

05-es6-plus/04-modules-basic/README.md

@@ -0,0 +1,24 @@
+# 练习 4：模块基础
+
+## 目标
+
+学会用 `export` 和 `import` 把不同文件连起来。
+
+## 你要练什么
+
+- `export`
+- `import`
+- `type="module"`
+
+## 任务
+
+- 从模块文件里导入课程数据和格式化函数
+- 把结果渲染到页面
+
+## 文件
+
+- [starter.html](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/04-modules-basic/starter.html)
+- [starter.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/04-modules-basic/starter.js)
+- [course-data.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/04-modules-basic/course-data.js)
+- [answer.html](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/04-modules-basic/answer.html)
+- [answer.js](/Users/lijiaqing/home/wwwroot/front-end-example/05-es6-plus/04-modules-basic/answer.js)