fix: update exported symbols

Author: darlanalves

src/index.ts

@@ -1,6 +1,6 @@
 export { normalize } from './normalize';
 export { serialize } from './serialize';
-export { materialize, createComment, createElement, createTextNode } from './materialize';
+export { materialize, createComment, createElement, createTextNode, setAttribute, setProperty } from './materialize';
 export type { Visitor } from './materialize';
 export type { ParserNode, ParserAttribute, CommentNode, TextNode, ElementNode, PackedAttributes, PackedChildNode, PackedCommentNode, PackedDocumentNode, PackedElementNode, PackedTextNode } from '@homebots/parse-html';
 export { pack, unpack } from '@homebots/parse-html';