fix: code block overflow scroll (#729)

Xinyang Yu

2024-01-25 d90199c8dbb2028cbe1f22997ab1cb0c26022916

 quartz/styles/base.scss

@@ -356,6 +356,7 @@
    counter-increment: line 0;
    display: grid;
    padding: 0.5rem 0;
    overflow-x: scroll;

    & [data-highlighted-chars] {
      background-color: var(--highlight);