add_action( 'single_job_listing_sidebar', 'jh_child_display_job_details_sidebar', 40 );
add_action( 'jobhunt_sidebar_args', 'jh_child_job_detail_sidebar_register', 20 );

function jh_child_display_job_details_sidebar() {
    ?><div id="secondary" class="widget-area sidebar-jobs" role="complementary">
        <div class="widget-area-inner">
            <?php dynamic_sidebar( 'sidebar-job-detail' ); ?>

        </div><!-- /.widget-area-inner -->
    </div><!-- #secondary --><?php
}

function jh_child_job_detail_sidebar_register( $sidebar_args ) {

    $sidebar_args['sidebar_jobs'] = array(
        'name'        => esc_html__( 'Job Details Sidebar', 'jobhunt' ),
        'id'          => 'sidebar-job-detail',
        'description' => esc_html__( 'Widgets added to this region will appear in the jobs details page.', 'jobhunt' ),
    );

    return $sidebar_args;
}