style: styling for codeblocks without langs (#527)

Jacky Zhao

2023-10-05 afa163f2fe9c52d4b3bf1a2e4d48887916b67c24

 quartz/components/styles/clipboard.scss

@@ -10,7 +10,6 @@
  background-color: var(--light);
  border: 1px solid;
  border-radius: 5px;
  z-index: 1;
  opacity: 0;
  transition: 0.2s;