Restore cursor after reloading

        self.add_rows(to_row(p) for p in Person.get_all())

    def reload(self) -> None:

        old_cursor_coordinate = self.cursor_coordinate

        self.clear()

        self.add_all_persons()

        if self.sort_key:

            self.sort(

                self.sort_key, key=to_decimal_if_numeric, reverse=self.sort_reversed

            )

        self.move_cursor(

            row=old_cursor_coordinate.row, column=old_cursor_coordinate.column

        )

    def on_data_table_header_selected(self, event: DataTable.HeaderSelected) -> None:

        if self.sort_key == event.column_key: