message: fix(docs-infra): fix broken toc ul styles
  Fixes
  PR Close
diff: background: $lightgray;
  }
  }
  + }
  &.toc-heading {
  mat-icon.rotating-icon {
  }
  }
  }
  -}
  // Alternative TOC View for Smaller Screens
  aio-toc.embedded {
  