Look into what needs to happen to support the pkg: import syntax

[wkillerud]

See Sass announcement of the feature

No longer will you have to manually add node_modules to your loadPaths option and worry about whether nested packages will work at all. No longer will you need to add ~s to your URLs and give up all portability. Now you can just pass importers: [new NodePackageImporter()] and write @use 'pkg:library' and it’ll work just how you want out of the box.

TODO

• Set up a test project in fixtures/ (branch: pkg-import)
• See how the new syntax affects the parser and how it handles links
• See how the new syntax affects import completions
• See if it makes sense to use the official importer via the JS API

[wkillerud]

See how the new syntax affects the parser and how it handles links

Poorly. The parser doesn't register them as links. It also breaks Cmd+click to navigate, which is provided by vscode-css-languageservices (an issue is open in microsoft/vscode-css-languageservice#383). Might be best to land support for this upstream, rather than patching it in here (microsoft/vscode-css-languageservice#384)

See how the the import completion is affected by the new import syntax

Also poorly, but this one is on me.

[wkillerud]

See if it makes sense to use the official importer via the JS API

There's a canonicalize method that looked promising, but it's not part of the public API.