CSS: Unknown property: 'text-autospace'

[tats-u]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.109.5
• OS Version: Windows 11

Steps to Reproduce:

1. New file
2. Switch language to CSS
3. Write:

   :root {
     text-autospace: normal;
   }
   
   pre {
     text-autospace: no-autospace;
   }

Unknown property: 'text-autospace'

CSSLint/csslint#796
https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/text-autospace
vuejs/vitepress#4996
web-infra-dev/rspress#2920
https://github.com/web-infra-dev/rspress/releases/tag/v2.0.0-rc.3
https://developer.chrome.com/blog/css-i18n-features#inter-script_spacing_text-autospace

The existence of this property is crucial in pages written in CJK languages.