- Update `Card::Closeable` to destroy associated "not now" state during close.
- Add new tests to verify closure behavior for different column types, including "not now".
to encompass behavior related to auto-closing and auto-reconsidering.
Note that putting this code in a single place reveals an asymmetry
between the actions:
- Auto-closing period is an optional attribute of a collection
- Auto-reconsidering period is hard-coded to 30 days for all collections
Dylan