게시물 목록 카드 썸네일 생성 추가

pages/posts/index.vue

@@ -10,6 +10,7 @@ const postCards = computed(() => posts.value.map((post) => ({
     appendEllipsis: false
   }),
   featuredImage: post.featuredImage,
+  featuredImageThumbnail: post.featuredImageThumbnail || '',
   tag: post.tags?.[0] ? String(post.tags[0]).toUpperCase() : '',
   publishedAt: formatPostDate(post.publishedAt),
   to: `/post/${post.slug}`