[Mail] Correctif merchant

Notification/MailMailjetNotification.php

 {
     protected MerchantResolver $merchantResolver;
 
+    const MERCHANT = 'merchant';
+
     public function __construct(
             MailjetTransport $mailjetTransport,
             Environment $templating,
 
     public function send($params = [])
     {
-        $merchantCurrent = $this->merchantResolver->getCurrent();
+        $merchant = isset($params[self::MERCHANT]) ? $params[self::MERCHANT] : $this->merchantResolver->getCurrent();
 
         $merchantConfigEmailFrom = $this->settingSolver->getSettingValue(
-                $merchantCurrent,
+                $merchant,
                 MerchantSettingDefinition::SETTING_EMAIL_FROM
         );
         $emailFrom = (isset($params[self::FROM_EMAIL]) && $params[self::FROM_EMAIL] && strlen(
                 )) ? $params[self::FROM_EMAIL] : $merchantConfigEmailFrom;
 
         $merchantConfigEmailFromName = $this->settingSolver->getSettingValue(
-                $merchantCurrent,
+                $merchant,
                 MerchantSettingDefinition::SETTING_EMAIL_FROM_NAME
         );
         $emailFromName = isset($params[self::FROM_NAME]) ? $params[self::FROM_NAME] : $merchantConfigEmailFromName;
 
         $merchantConfigEmailSubjectPrefix = $this->settingSolver->getSettingValue(
-                $merchantCurrent,
+                $merchant,
                 MerchantSettingDefinition::SETTING_EMAIL_SUBJECT_PREFIX
         );
         $emailSubjectPrefix = isset($params[self::SUBJECT_PREFIX]) ? $params[self::SUBJECT_PREFIX] : $merchantConfigEmailSubjectPrefix;