configure shiki highlight

nuxt.config.ts

@@ -13,14 +13,10 @@ export default defineNuxtConfig({
       injectPage: false,
     },
     highlight: {
-      theme: {
-        // Default theme (same as single string)        
-        default: 'github-light',
-        // Theme used if `html.dark`        
-        dark: 'github-dark',
-        // Theme used if `html.sepia`        
-        sepia: 'monokai'
-      }
+      theme: 'github-light',
+      preload: [
+        'sh',
+      ]
     }
   },
   vuetify: {