fix: allow dashes and underscores in block references (closes #712)

Jacky Zhao

2024-01-20 1f2ea96ae0700f1cd4267f9bac7a59a8962f961f

 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;
}