Flatshop: display content in the product lightbox instead of the product description text

gistfile1.php

<?php

function product_lightbox_full_text() {
	if( themify_theme_is_product_lightbox() ) {
		remove_action( 'woocommerce_single_product_summary', 'woocommerce_template_single_excerpt', 20 );
		add_action( 'woocommerce_single_product_summary', 'the_content', 20 );
	}
}
add_action( 'init', 'product_lightbox_full_text' );