**Improvements**:
- [58](https://github.com/grindsa/dkb-robo/issues/58) drop support of the old frontent (leagcy_mode)
- [56](https://github.com/grindsa/dkb-robo/issues/56) add support for [chipTAN manuell and chipTAN QR]
- [48](https://github.com/grindsa/dkb-robo/issues/48) fetch transactions older than one year
- scan-postbox option in dkb-robo cli