[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

docs/stylesheets/extra.css

@@ -348,7 +348,7 @@ p { text-align: justify; }
     gap: 1rem;
     margin: 4rem 0 1rem;
   }
-  
+
   .mdx-stats__item {
     min-height: 120px;
   }