Highlight svelte code

Author: NullVoxPopuli

docs-app/app/routes/application.ts

@@ -27,6 +27,7 @@ export default class Application extends Route {
         import('shiki/langs/handlebars.mjs'),
         import('shiki/langs/jsonc.mjs'),
         import('shiki/langs/markdown.mjs'),
+        import('shiki/langs/svelte.mjs'),
       ],
       engine: createOnigurumaEngine(() => import('shiki/wasm')),
     });

docs-app/index.html

@@ -8,9 +8,6 @@
 
     {{content-for "head"}}
 
-    <link integrity="" rel="stylesheet" href="/@embroider/virtual/vendor.css" />
-    <link integrity="" rel="stylesheet" href="/assets/docs-app.css" />
-
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
     <link