fix: add space and missing dot for listing pages (#907)

Eiko Wagenknecht

2024-02-20 3b266ee7d0d414d2af7d291f249b0153af51aa2e

 quartz/styles/callouts.scss

@@ -157,6 +157,6 @@
  }

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