feat: show room prices in room assignment form field

tests/Validator/Constraints/RoomSelectionValidatorTest.php

@@ -146,7 +146,7 @@ class RoomSelectionValidatorTest extends ConstraintValidatorTestCase
             $travel->rooms[] = $room;
 
             $roomSelection = new RoomSelectionDto();
-            $roomSelection->roomId = $data['id'];
+            $roomSelection->id = $data['id'];
             $roomSelection->quantity = $data['quantity'];
             $roomSelections[] = $roomSelection;
         }