Nuxt 초기 세팅 추가

components/content/ProseHeaderCard.vue

@@ -0,0 +1,14 @@
+<script setup>
+defineProps({
+  variant: {
+    type: String,
+    default: 'simple'
+  }
+})
+</script>
+
+<template>
+  <header class="prose-header-card my-8 bg-ink p-8 text-white" :class="`prose-header-card--${variant}`">
+    <slot />
+  </header>
+</template>