fix: use joinSegments for `contentIndex.json` file path (#702)

kabirgh

2024-01-16 e17ff202449635af29ef0056886e472a2615708b

 quartz/components/Header.tsx

@@ -9,7 +9,7 @@
  display: flex;
  flex-direction: row;
  align-items: center;
  margin: 2em 0;
  margin: 2rem 0;
  gap: 1.5rem;
}