NEW Preview product list when we choose model layout Commerce (#30185)

* New update for templateMail by creating files

* New updating for get php content

* Update html.formmail.class.php

* Fix updating content news

* Fix CTI Errors

* NEW function for Preview In CKeditor products

* edit html file for news

* Add automaticaly subject value to editor

* Update html.formmail.class.php

* FIX name and path of file

* Fix path for files

* Fix errors variables

* replace file in ajax folder

* rename path

* Fix return function in product class

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Co-authored-by: Laurent Destailleur <eldy@destailleur.fr>

htdocs/core/class/html.formmail.class.php

@@ -1560,7 +1560,6 @@ class FormMail extends Form
 					// Remplacer la variable de substitution dans le contenu HTML
 					contentHtml = contentHtml.replace(/__SUBJECT__/g, subject);
 
-
 					// Envoyer le contenu HTML à process_template.php pour traitement PHP
 					$.ajax({
 						type: "POST",