* refactoring to persistence.py #255
* refactoringos-level-stuff
* fixing logging, again
* finalizing callback logic
* Update src/cryptoadvance/specter/helpers.py
* Update src/cryptoadvance/specter/controller.py
* better logging
* blackify persistence
* make parameters possible
* beautify
* docs: update TOC
* tests for persistence part 1
* refactoring shell-tests
* (almost) completed tests for persistence
* including code-coverage on tests
* test for the bug
* improve test
* Fix test
* make black happy
* fix the bloody tests
* blackify
