Show promotional based text in Mini-cart

Display promotional text in Mini-cart based on promotions.

// Show promotional based text in Mini-cart
add_action('advanced_woo_discount_rules_after_initialize', function() {
    if(class_exists('\Wdr\App\Router')) {
        add_action('woocommerce_before_mini_cart', array(\Wdr\App\Router::$manage_discount, 'displayPromotionMessages'), 10);
    }
});