Describe the bug

Expected behavior
Text does not exceed the box.

Acutally behavior
Text out of box.

How to Reproduce

1. Go to official quick-start
2. Visit Admin Console: http://ip:8848/nacos/index.html
3. Select 「ConfigManagement」 -> 「Configurations」 -> 「Export」
4. See error

Desktop (please complete the following information):

• OS: macOS
• Version: nacos-server 2.1.0-BETA, nacos-client 2.1.0-BETA

Additional context

• Browser Version： Google Chrome Version 99.0.4844.84 (Official Build) (x86_64)