[Suggestion]: Documentation should be printable

Summary

Currently, the React documentation cannot be printed. Please add features for the documentation to be printable.

Details

I prefer reading documentation offline.

I'd like to add annotations. I want to read documentation from a book, not online.

This way of learning supports nature sustainment, is less energy draining and allows for better concentration.

The React documentation has come to a state where it is stable for the most part.

In the past, I successfully printed loads of online documentation and had some of them even be bound:

Current Situation

Currently, printing the React documentation is not possible:

Desired Situation

1. Add CSS rules providing for reasonably printing the React documentation

2. Add a "Download PDF" button to the documentation's left menu for printing a whole chapter/topic spanning several web pages as a whole (e.g. "Describing the UI"), like Microsoft does with their online documentation:

   

首先查看 React 文档网站的样式和左侧菜单入口，重点了解当前的打印输出和章节导航是如何工作的。完成的标准是文档能够合理打印，并且左侧菜单中的 Download PDF 选项可以生成跨越多个页面的完整章节或主题。