fix: change callout metadata regex to include non-letter characters (#1174)

Alex Nordstrom

2024-05-29 9ff4626d25aa28891e92d533f6513a43e3374e13

 quartz/components/styles/clipboard.scss

@@ -4,7 +4,7 @@
  float: right;
  right: 0;
  padding: 0.4rem;
  margin: -0.2rem 0.3rem;
  margin: 0.3rem;
  color: var(--gray);
  border-color: var(--dark);
  background-color: var(--light);