✨ feat: add copy button to code blocks

config.toml

@@ -115,6 +115,9 @@ language_name.es = "Español"
 # The default setting is the light theme.
 theme_switcher = true
 
+# Add a "copy" button to codeblocks (loads ~700 bytes of JavaScript).
+copy_button = true
+
 # Date format used when listing posts (main page, /blog section, tag posts list…)
 # Default is "6th July 2049" in English and "%d %B %Y" in other languages.
 long_date_format = "%d %B %Y"