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

Alex Nordstrom

2024-05-29 9ff4626d25aa28891e92d533f6513a43e3374e13

 quartz/styles/callouts.scss

@@ -157,6 +157,6 @@
  }

  .callout-title-inner {
    font-weight: $boldWeight;
    font-weight: $semiBoldWeight;
  }
}