减少 hljs 的体积

src/main.ts

@@ -1,18 +1,28 @@
 import { createApp } from "vue"
 import { create } from "naive-ui"
-import { marked } from "marked"
+import App from "./App.vue"
+
 //@ts-ignore
 import "normalize.css"
 //@ts-ignore
 import "github-markdown-css/github-markdown-light.css"
-//@ts-ignore
-import "highlight.js/styles/github.min.css"
-import App from "./App.vue"
+
+import { marked } from "marked"
 import markedAlert from "marked-alert"
 import { markedHighlight } from "marked-highlight"
-import hljs from "highlight.js"
 import { alertVariants } from "./utils"
 
+import hljs from "highlight.js/lib/core"
+import xml from "highlight.js/lib/languages/xml"
+import css from "highlight.js/lib/languages/css"
+import javascript from "highlight.js/lib/languages/javascript"
+//@ts-ignore
+import "highlight.js/styles/github.min.css"
+
+hljs.registerLanguage("html", xml)
+hljs.registerLanguage("css", css)
+hljs.registerLanguage("js", javascript)
+
 marked.use({
   gfm: true,
   async: true,