CSS navigation (classes as symbols, variables, ...)

[arnoson]

I'm using the CSS Navigation plugin for VS Code a lot and was wondering what would be the best way to bring the experience to Zed. The plugin does a few things, but the most valuable for me are

• adding CSS classes as workspace symbols, so they can be searched for
• providing auto-completion for CSS variables
  It also provides class name references to navigate from a CSS class used in e.g. an HTML file to the class definition, which I guess would be more complicated since it involes non-CSS files.

As for the CSS file features (symbols, variables) it would be great if this could be part of Zed's CSS language server. Or would this be out of scope and better be provided as an external plugin?

[SomeoneToIgnore]

it would be great if this could be part of Zed's CSS language server

There's no such thing, it's a vscode-css-language-server that used.
Hence,

better be provided as an external plugin