create the tabs

main.dart

  List<Widget> createTabs() {
    return [
      Tab(text: "Message Broker"),
      Tab(text: "Email Client"),
      Tab(text: "Cloud Storage"),
    ];
  }

  List<Widget> generateTabColumns() {
    return [
      DataTableWidget(listOfColumns: getConfigData("rabbitmq")),
      DataTableWidget(listOfColumns: getConfigData("smtp")),
      DataTableWidget(listOfColumns: getConfigData("minio")),
    ];
  }