fix: provide default pageTitleSuffix (closes #1452)

Jacky Zhao

2024-09-28 8889ab63ebf579d7f134d4e83ab21533ad5bda87

 quartz/components/styles/legacyToc.scss

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

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