Added extra widget in dokan store page with store extra information

functions.php

<?php
/* Booth news field seller settings */

add_filter( 'dokan_settings_form_bottom', 'extra_fields', 10, 2);

function extra_fields( $current_user, $profile_info ){
$booth_news= get_user_meta( $current_user, 'booth_news', true );
$about_us= get_user_meta( $current_user, 'about_us', true );
?>
     <div class="gregcustom dokan-form-group">
            <label class="dokan-w3 dokan-control-label" for="setting_address">
                <?php _e( 'Booth news', 'dokan' ); ?>
            </label>

                <div class="dokan-w8 dokan-text-left">
                        <?php
                            $booth_news_args = array(
                                'editor_height' => 200,
                                'media_buttons' => false,
                                'teeny'         => true,
                                'quicktags'     => false
                            );
                            wp_editor( $booth_news, 'booth_news', $booth_news_args );
                        ?>
            </div>

     <div class="gregcustom dokan-form-group">
            <label class="dokan-w3 dokan-control-label" for="setting_address">
                <?php _e( 'About Us', 'dokan' ); ?>
            </label>

                <div class="dokan-w8 dokan-text-left">
                        <?php
                            $about_us_args = array(
                                'editor_height' => 200,
                                'media_buttons' => false,
                                'teeny'         => true,
                                'quicktags'     => false
                            );
                            wp_editor( $about_us, 'about_us', $about_us_args );
                        ?>
     </div>
<?php
}

/* Saving the booth news field */
add_action( 'dokan_store_profile_saved','save_extra_fields', 10 );

    function save_extra_fields( $store_id ) {
         if ( ! $store_id ) {
            return;
        }

        if ( ! isset( $_POST['booth_news'] ) && ! isset( $_POST['about_us'] ) ) {
            return;
        }

        update_user_meta( $store_id, 'booth_news', $_POST['booth_news'] );
        update_user_meta( $store_id, 'about_us', $_POST['about_us'] );
    }



/*Showing extra field on the store page sidebar*/

add_action( 'dokan_sidebar_store_after','custom_side_bar',10,2);

function custom_side_bar( $store_user, $store_info ){
    $booth_news = get_user_meta( $store_user->ID, 'booth_news', true );
    $about_us   = get_user_meta( $store_user->ID, 'about_us', true );

?>
        <?php if ( !empty( $booth_news ) ) { ?>
            <div class="dokan-store-sidebar">
                   <aside class="widget">
                        <h3 class="widget-title"><?php _e( 'Booth News', 'dokan' ); ?></h3>
                            <?php echo  wpautop( $booth_news ); ?>
                     </aside>
            </div>
        <?php } ?>

        <?php if ( !empty( $about_us ) ) { ?>
            <div class="dokan-store-sidebar">
                <aside class="widget">
                    <h3 class="widget-title"><?php _e( 'About Us', 'dokan' ); ?></h3>
                    <?php echo  wpautop( $about_us ); ?>
                </aside>
            </div>
        <?php } ?>
        <?php
}