fix: correct graph labels for `index.md` nodes (#431)

Ben Schlegel

2023-08-28 c35cd422c65a58f1069302aad0cf9eef7f93d987

 quartz/components/styles/popover.scss

@@ -43,7 +43,9 @@

  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;

  @media all and (max-width: $mobileBreakpoint) {
    display: none !important;