docs: Adds back Xinyang's cs garden to showcase (#1323)

Xinyang Yu

2024-08-09 12904ab7960edc3bedd77c65cf5e6a5d599d882d

 quartz/components/styles/legacyToc.scss

@@ -12,7 +12,7 @@
      margin: 0;
    }
  }
    

  & ul {
    list-style: none;
    margin: 0.5rem 1.25rem;