fix: remove quartz 3 references, update font style in popovers

Jacky Zhao

2024-01-21 015b4f6a15da3b81f9e3ad004aa24636ab3882ed

 quartz/components/styles/toc.scss

@@ -30,6 +30,7 @@
  overflow: hidden;
  max-height: none;
  transition: max-height 0.5s ease;
  position: relative;

  &.collapsed > .overflow::after {
    opacity: 0;