This sample demonstrates the Kanban component with the stacked header feature. In this sample, the Kanban is showcased with two headers aligned in a stacked manner.
                    The Kanban provides an option to add an additional header along with a
                    column header in stacked manner. This header groups the logically
                    related columns. This can be achieved by mapping text and
                    keyFields attribute of the stackedHeaders{" "}
                    property.