✨[Nuxt3] Make Header & Footer

/components/TheHeader.vue

<template>
  <header style="background: gray;">
    <a href="#">Site name</a>
  </header>
</template>

/components/TheFooter.vue

<template>
	<footer style="background: blue;">
		© 2023 site name
	</footer>
</template>

app.vue

<template>
  <TheHeader />
  <NuxtPage />
  <TheFooter />
</template>