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

Ben Schlegel

2023-08-28 c35cd422c65a58f1069302aad0cf9eef7f93d987

 quartz/components/styles/graph.scss

@@ -43,7 +43,6 @@
    width: 100vw;
    height: 100%;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: none;
    overflow: hidden;