Add blacklisted stat to import result

Author: tatevikg1

src/Domain/Subscription/Service/SubscriberCsvImporter.php

@@ -72,6 +72,7 @@ public function importFromCsv(UploadedFile $file, SubscriberImportOptions $optio
             'created' => 0,
             'updated' => 0,
             'skipped' => 0,
+            'blacklisted' => 0,
             'errors' => [],
         ];
 
@@ -182,6 +183,10 @@ private function processRow(
             }
         }
 
+        if ($subscriber->isBlacklisted()) {
+            $stats['blacklisted']++;
+        }
+
         $this->handleFlushAndEmail($subscriber, $options, $dto, $addedNewSubscriberToList);
     }