広場投稿追加画面の刷新 (#399) (#413)

Reviewed-on: http://git.miteruzo.com/miteruzo/btrc-hub/pulls/413
Co-authored-by: miteruzo <miteruzo@naver.com>
Co-committed-by: miteruzo <miteruzo@naver.com>

frontend/src/components/posts/import/PostImportThumbnailPreview.tsx

@@ -0,0 +1,25 @@
+import PostThumbnailPreview from '@/components/posts/PostThumbnailPreview'
+
+import type { FC } from 'react'
+
+type Props = {
+  url:        string
+  file?:      File
+  alt?:       string
+  className?: string }
+
+
+const PostImportThumbnailPreview: FC<Props> = (
+    { url,
+      file,
+      alt = 'サムネール',
+      className = 'h-16 w-16' },
+) => (
+    <PostThumbnailPreview
+        url={url}
+        file={file}
+        alt={alt}
+        className={className}
+        referrerPolicy="no-referrer"/>)
+
+export default PostImportThumbnailPreview