fix: overflow fade for good (closes #1218)

Jacky Zhao

2024-06-18 541b470cfc85c342ba8b7548d58d668b49d8dd85

 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;