
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: I75df01d000d74878e7313fa556b16eef2ca4c9ff
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: I75df01d000d74878e7313fa556b16eef2ca4c9ff