Fix - Same price strikeout issue for ray core theme

Fix the same price strikeout issue for the Ray Core theme.

add_filter('woocommerce_cart_item_price', function ($price_html, $cart_item, $cart_item_key) {
    if (class_exists('\Wdr\App\Router') && method_exists(\Wdr\App\Router::$manage_discount, 'removeDuplicateStrikeoutPrice')) {
        return \Wdr\App\Router::$manage_discount->removeDuplicateStrikeoutPrice($price_html);
    }
    return $price_html;
}, 10, 3);