[Feature Request] Support Paste Content of Clipboard as Pure Text

[tjx666]

Reason

I often copy some text from vscode and paste it to confference, but will also paste with css style. So, it would be convinnient to add a context menu item to paste the content of clipboard to pure text.

Expect

Add a new menu item named Paste Content of Clipboard as Pure Text

[BlackGlory]

Don't browsers already provide this feature?

[tjx666]

Seems the Paste and Match Style is the same as `Paste as Plain Text

[xianghongai]

此功能，推荐我的油猴脚本：https://greasyfork.org/zh-CN/scripts/448222-copy-it