fix: ensure code exists inside pre before adding clipboard

Jacky Zhao

2023-08-20 7b7064ad2be68e8d6d43123c12529ca94a325fcb

 .prettierrc

@@ -2,5 +2,6 @@
  "printWidth": 100,
  "quoteProps": "as-needed",
  "trailingComma": "all",
  "tabWidth": 2
  "tabWidth": 2,
  "semi": false
}