feat: cost unit for custom destinations

src/Controller/Administrative/System/Destination/DestinationTrait.php

@@ -38,6 +38,7 @@ trait DestinationTrait
             ->setHotelBusProId($hotel->getBusProId())
             ->setCountry($destinationDto->getCountry())
             ->setPickups($pickups)
+            ->setCostUnit($destinationDto->getCostUnit())
         ;
     }
 }

src/Controller/Administrative/System/Destination/DuplicateController.php

@@ -43,6 +43,7 @@ class DuplicateController extends AbstractController
                 ->setHotel($hotel->getName())
                 ->setHotelCode($hotel->getCode())
                 ->setHotelBusProId($hotel->getBusProId())
+                ->setCostUnit($destinationDto->getCostUnit())
             ;
 
             $this->entityManager->persist($copy);