build(deps-dev): bump lightningcss from 1.16.0 to 1.19.0

[dependabot]

Bumps lightningcss from 1.16.0 to 1.19.0.

Release notes

Sourced from lightningcss's releases.

v1.19.0

This release includes several features and improvements for the custom visitor API, including support for defining how to parse custom at rules. In addition, lots of bug fixes are included for auto prefixing, selector downleveling, and more.

Custom at-rules

When Lightning CSS does not know how to parse an unknown at rule, it stores the prelude and body as a list of raw tokens. Without a definition for how a rule should be parsed, Lighting CSS doesn't know how to interpret it. Tokens are fine for simple use cases, but if you are building a custom visitor plugin that processes a custom at-rule, and want it to integrate with the rest of CSS, it is useful to define how the rule should be parsed and interpreted. In this release, a new customAtRules option has been added to the API to enable just that.

For example, here is how you could define an @mixin rule which expects a custom identifier as its prelude, and a style-block as its body. This allows nesting declarations and rules just like other at-rules like @media and @supports.

{
  customAtRules: {
    mixin: {
      prelude: '<custom-ident>',
      body: 'style-block'
    }
  }
}

With that, you can parse code like this:

@mixin foo {
  color: red;
&.bar {
color: green;
}
}

Lightning CSS also validates the code and will emit syntax errors when it doesn't conform to the syntax definition. Another nice part is that we use this definition to automatically infer the TypeScript types for these rules when used in custom visitors.

Check out the documentation to learn more!

Features

• Implement support for parsing custom at rules in JS bindings (#395)
• Support raw property on returned declarations in visitors (#385)
• Support raw values in visitors that return tokens (f9ed30f9ed8399d1599a9724eb55ce7e0c0ee8ba)
• Make more AST properties optional in visitor return types (3fc05a9af629b69b72eaf5371891961d93450a1d)
• Add substitute_variables function to UnparsedProperty in the Rust API (#388)
• Add Implement Property::set_prefix function (a19228dcda0cc0fa6a98f1c9ab19829d9f8c0584)
• Merge non-adjacent @layer rules (6419d542bad89b4f64dcf5a2f481a4e6b6d8a7a9)
• Short-circuit on error in Rust visitor API (#406)
• Support nesting selector at the root, which is transformed to :scope (44434116f4a0f0182a041971028b6cc729ecadc4)

... (truncated)

Commits

• f2a7c8f Bump node version in CI
• da3cb9a v1.19.0
• f394b50 Use unpkg module option in docs for wasm
• fcf4127 Fix serializing currentColor
• f9ed30f Support raw values in visitors that return tokens
• 6a53944 Fix cue-region-function ast
• 331c8a9 Improve deserialization error messages
• 856d460 Copy license into all npm packages
• 482fc40 Fix serializing :host and ::slotted
• 31fc453 Fix downleveling selectors
• Additional commits viewable in compare view

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