Nuxt Ui Guideline: Installation — Wrap app with UApp component. Description: UApp provides global configs for Toast Tooltip and overlays. Do: <UApp> wrapper in app.vue. Don't: Skip UApp wrapper. Good Example: <UApp><NuxtPage/></UApp>. Bad Example: <NuxtPage/> without wrapper. Severity: High. Docs: https://ui.nuxt.com/docs/components/app.