Try to add the following PHP code snippet to the child theme functions.php file to do this
function woodmart_cart_side_widget() {
if ( ! whb_is_side_cart() || ! woodmart_woocommerce_installed() ) return;
?>
<div class="cart-widget-side">
<div class="widget-heading">
<p class="widget-title"><?php esc_html_e( 'Shopping cart', 'woodmart' ); ?></p>
<a href="#" class="close-side-widget"><?php esc_html_e( 'close', 'woodmart' ); ?></a>
</div>
<?php the_widget( 'WC_Widget_Cart', 'title=' ); ?>
</div>
<?php
}