Refactor to use @import to import types

Closes GH-836.

Reviewed-by: Titus Wormer <[email protected]>

lib/index.js

@@ -1,16 +1,9 @@
-// Register `Raw` in tree:
-/// <reference types="mdast-util-to-hast" />
-
 /**
- * @typedef {import('hast').Element} Element
- * @typedef {import('hast').ElementContent} ElementContent
- * @typedef {import('hast').Nodes} Nodes
- * @typedef {import('hast').Parents} Parents
- * @typedef {import('hast').Root} Root
- * @typedef {import('hast-util-to-jsx-runtime').Components} JsxRuntimeComponents
- * @typedef {import('remark-rehype').Options} RemarkRehypeOptions
- * @typedef {import('unist-util-visit').BuildVisitor<Root>} Visitor
- * @typedef {import('unified').PluggableList} PluggableList
+ * @import {Element, ElementContent, Nodes, Parents, Root} from 'hast'
+ * @import {Components as JsxRuntimeComponents} from 'hast-util-to-jsx-runtime'
+ * @import {Options as RemarkRehypeOptions} from 'remark-rehype'
+ * @import {BuildVisitor} from 'unist-util-visit'
+ * @import {PluggableList} from 'unified'
  */
 
 /**
@@ -233,7 +226,7 @@ export function Markdown(options) {
     passNode: true
   })
 
-  /** @type {Visitor} */
+  /** @type {BuildVisitor<Root>} */
   function transform(node, index, parent) {
     if (node.type === 'raw' && parent && typeof index === 'number') {
       if (skipHtml) {

test.jsx

@@ -1,7 +1,7 @@
 /* @jsxRuntime automatic @jsxImportSource react */
 /**
- * @typedef {import('hast').Root} Root
- * @typedef {import('react-markdown').ExtraProps} ExtraProps
+ * @import {Root} from 'hast'
+ * @import {ExtraProps} from 'react-markdown'
  */
 
 import assert from 'node:assert/strict'