feat: gruvbox theme on code

hugo.toml

@@ -8,6 +8,9 @@ disableHugoGeneratorInject = true
 [outputs]
 home = ["HTML", "RSS", "JSON"]
 
+[markup.highlight]
+style = "gruvbox"
+
 [markup.goldmark.extensions.passthrough]
 enable = true
 

themes/starless/layouts/_default/baseof.html

@@ -120,6 +120,10 @@
         background: rgba(12, 11, 10, 0.86);
       }
 
+      .highlight pre {
+        padding: 0.5rem 1rem;
+      }
+
       @media (max-width: 768px) {
         #search-dialog {
           margin-top: 1rem;