v0.5.0

Added

• StyleTags add styleTags rules to a Lezer grammar, as a CodeMirror
  caller does with language.configure({props: [styleTags({...})]}): set them
  on Content.StyleTags or DiffOptions.StyleTags, naming the grammar
  ("java", "javascript", ...) and the paths and tags of each StyleRule.
  They combine with the grammar's own rules as Lezer combines them. Rules for
  a language that has no Lezer grammar, or a path that does not parse, make
  Layout return an error.
• RicherJavaTags, opt-in rules that tag Java finer than @lezer/java
  does: enum constants as constant(variableName), annotations as
  annotation, fields as definition(propertyName), and package and import
  paths as namespace.