fix: use slugs instead of title as basis for explorer (#652)

Jacky Zhao

2023-12-28 504b44716240bb3fb9a077a1acaa3dc1059e2c1e

 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;