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/01-template-and-destructuring/answer.js

@@ -0,0 +1,11 @@
+const student = {
+  name: "林晨",
+  stage: "ES6+",
+};
+
+const scores = [88, 92, 95];
+
+const { name, stage } = student;
+const [firstScore, secondScore] = scores;
+
+document.getElementById("output").textContent = `${name} 正在学习 ${stage}，前两次练习分数分别是 ${firstScore} 和 ${secondScore}。`;