Add confirm property in PNotifyOptions (#17043)

Use PNotifyconfirm interface as a type for confirm property in the PNotifyOptions

types/jquery.pnotify/index.d.ts

@@ -133,6 +133,10 @@ interface PNotifyOptions {
      * Whether to escape the content of the text. (Not allow HTML.)
      */
     text_escape?: boolean;
+    /**
+    * Support for PNotifyconfirm options
+    */
+    confirm?: PNotifyconfirm
     /**
      * What styling classes to use. (Can be either "brighttheme", "jqueryui", "bootstrap2", "bootstrap3", "fontawesome" or a custom style object)
      */