fix exception message

TheCyclopsProject/TheCyclopsContracts/DataModels/InstallationDataModel.cs

@@ -45,6 +45,6 @@ public class InstallationDataModel(string id, string employeeId,
             throw new ValidationException("Field Sum is less than or equal to 0");
 
         if ((Components?.Count ?? 0) == 0)
-            throw new ValidationException("The sale must include components");
+            throw new ValidationException("The installation must include components");
     }
 }