Add configuration for warranty, payment options, and bookkeeping integration

- Defined constants for warranty months, eligibility window, and service months.
- Enabled automatic invoice forwarding to bookkeeping software with email configuration.
- Integrated payment options for Mollie and PayPal, including API keys and webhook settings.
- Disabled pay on delivery option.

assets/functions.php

@@ -2848,7 +2848,7 @@ function serviceReport($history, $request, $country_code)
 //------------------------------------------
 // LIST PARTNER 
 //------------------------------------------
-function listPartner($partnertype, $user_right = null, $input, $required)
+function listPartner($partnertype, $input, $required, $user_right = null)
 {
   include dirname(__FILE__,2).'/settings/settings_redirector.php';