Add support for hljs aliases for code hints

It appears to be due to some rules trying to undo certain highlighting on Javascript. It’s different because the top is marked as hljs javascript versus the second which is lang-javascript hljs.

.hljs-keyword,
.javascript .hljs-title,
.nginx .hljs-title,
.hljs-subst,
.hljs-request,
.hljs-status {
    color: #333;
    font-weight: bold;
}
.javascript .hljs-title,
.lisp .hljs-title,
.clojure .hljs-title,
.hljs-subst {
    font-weight: normal;
}
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