Dkb-robo

**Improvements**:

- sort mfa devices by enrollment date with "main" device listed first
- allow preselection of mfa device by using the `mfa_device` parameter in context-handler

**Improvements**:

- [50](https://github.com/grindsa/dkb-robo/issues/50) refactoring for better code readability

**Bugfixes**:

- [49](https://github.com/grindsa/dkb-robo/issues/49) - adding Mandatsreferenz to transcation dictionary

**Bugfixes**:

- 47 - refactor `DKBRobo._build_account_dic()` to reflect changes in rest-responses
- do not show transactoin link for debitcards
- several fixes to keep ordering as shown in UI
- [fix](https://github.com/grindsa/dkb-robo/issues/47#issuecomment-1751807028) to allow future transaction dates in new API

**Improvements**:

- show accounts which are not assigned to a group
- show debitcards in DKBRobo.account_dic
- extend credit/debitcard information by status (blocked/active) and expiry date

**Bugfixes**:

- 46 - full fix for `tan_insert` option

**Improvements**:

- 45 - CLI support of the new API
- CLI option `-l` to use the old frontend
- support date input in `%Y-%m-%d` format
- all dates will be returned in `%Y-%m-%d` format when using the new API

**Bufixes**:

- 46 - `tan_insert` option enforces the useage of old frontend
- CLI option `-l` enforces the useage of old frontend