
Refresh charm to drop release usage in ops-sunbeam. Drop surplus template fragments. Refresh unit tests. Tidy requirements.txt. Switch to black + other linters. Tidy docstrings across operator. Change-Id: I872da0c54dda857a4005b84905cb248d7a9782ae
Refresh charm to drop release usage in ops-sunbeam. Drop surplus template fragments. Refresh unit tests. Tidy requirements.txt. Switch to black + other linters. Tidy docstrings across operator. Change-Id: I872da0c54dda857a4005b84905cb248d7a9782ae