fix(docs): fix missing import

Author: thejackshelton

apps/website/src/_state/app-state.type.ts

@@ -1,5 +1,5 @@
 import { NoSerialize } from '@builder.io/qwik';
-import type { Highlighter } from 'shiki';
+import type { Highlighter } from 'shikiji';
 
 export interface AppState {
   mode: 'light' | 'dark';