Refactor to use @imports

Author: wooorm

Diff for: lib/index.js

@@ -1,15 +1,6 @@
 /**
- * @typedef {import('unist').Node} UnistNode
- * @typedef {import('unist').Parent} UnistParent
- */
-
-/**
- * @typedef {Exclude<import('unist-util-is').Test, undefined> | undefined} Test
- *   Test from `unist-util-is`.
- *
- *   Note: we have remove and add `undefined`, because otherwise when generating
- *   automatic `.d.ts` files, TS tries to flatten paths from a local perspective,
- *   which doesn’t work when publishing on npm.
+ * @import {Test} from 'unist-util-is'
+ * @import {Node as UnistNode, Parent as UnistParent} from 'unist'
  */
 
 /**

Diff for: test.js

@@ -1,7 +1,6 @@
 /**
- * @typedef {import('mdast').Emphasis} Emphasis
- * @typedef {import('mdast').InlineCode} InlineCode
- * @typedef {import('unist').Node} UnistNode
+ * @import {Emphasis, InlineCode} from 'mdast'
+ * @import {Node as UnistNode} from 'unist'
  */
 
 import assert from 'node:assert/strict'