message: fix(shared): m2text should remove directive
diff: @@ -3,7 +3,8 @@ import stripTags from "striptags";
  const removals: string | RegExp[] = [
  // code blocks
  /(?:^|\n).*?(`{3,}).*?\n[\s\S]*?\1\n/gm,
  -
  + // directives
  + /^@/gm,
  // hr
  /^[-*]{3,}$/gm,
  // footnotes
  