feat: support layouts (#56)

Co-authored-by: Anthony Fu <anthonyfu117@hotmail.com>

src/main.ts

@@ -1,8 +1,11 @@
 import './styles/main.postcss'
-import routes from 'pages-generated'
 import { ViteSSG } from 'vite-ssg'
+import generatedRoutes from 'pages-generated'
+import { setupLayouts } from 'layouts-generated'
 import App from './App.vue'
 
+const routes = setupLayouts(generatedRoutes)
+
 // https://github.com/antfu/vite-ssg
 export const createApp = ViteSSG(
   App,