Add commented Vite config for external access

vite.config.mjs

@@ -3,6 +3,9 @@ import { extensions, ember } from '@embroider/vite';
 import { babel } from '@rollup/plugin-babel';
 
 export default defineConfig({
+  // server: {
+  //   host: '0.0.0.0'
+  // },
   plugins: [
     ember(),
     // extra plugins here