feat: show room prices in room assignment form field

tests/Service/RoomAssignmentServiceTest.php

@@ -200,7 +200,7 @@ class RoomAssignmentServiceTest extends TestCase
 
         foreach ($selections as $selection) {
             $roomSelectionDto = new RoomSelectionDto();
-            $roomSelectionDto->roomId = $selection['roomId'];
+            $roomSelectionDto->id = $selection['roomId'];
             $roomSelectionDto->quantity = $selection['quantity'];
             if (isset($selection['capacity'])) {
                 $roomSelectionDto->capacity = $selection['capacity'];