fix: correct published date reference in UserArticleFeed component

Author: kingRayhan

src/app/[username]/(profile-page)/articles/UserArticleFeed.tsx

@@ -28,6 +28,7 @@ const UserArticleFeed: React.FC<UserArticleFeedProps> = ({ userId }) => {
           "handle",
           "cover_image",
           "body",
+          "published_at",
           "created_at",
           "excerpt",
         ]
@@ -73,7 +74,7 @@ const UserArticleFeed: React.FC<UserArticleFeedProps> = ({ userId }) => {
             username: article?.user?.username ?? "",
             is_verified: Boolean(article?.user?.is_verified),
           }}
-          publishedAt={article?.created_at?.toDateString() ?? ""}
+          publishedAt={article?.published_at?.toDateString() ?? ""}
           readingTime={readingTime(article?.body ?? "")}
         />
       ))}