Check link isExternal before adding target="_blank" (#1211)

Paul Trotter

2024-06-17 42640bceb57c450d5c2427bd2b449827468d0ede

 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;