fix(fediverse): match episode posts replies fields with comments in union query

        $postModel = new PostModel();

        $episodePostsRepliesBuilder = $postModel->builder();

        $episodePostsReplies = $episodePostsRepliesBuilder->select(

            'id, uri, episode_id, actor_id, in_reply_to_id, message, message_html, is_private, favourites_count as likes_count, replies_count, published_at as created_at, created_by, 1 as is_from_post'

            'id, uri, episode_id, actor_id, in_reply_to_id, message, message_html, favourites_count as likes_count, replies_count, published_at as created_at, created_by, is_private, 1 as is_from_post'

        )

            ->whereIn('in_reply_to_id', static function (BaseBuilder $builder) use (&$episodeId): BaseBuilder {

                return $builder->select('id')