Plugwise

- Improve control_state processing:
- Change value from `off` to `idle` to better match HA Core `HVACAction` states.
- Handle difference between old and new Adam firmware: set `control_state` based on `setpoint` vs `temperature` for older firmware.
- Implement fix for [776](https://github.com/plugwise/plugwise-beta/issues/776), move it from the integration to the backend library.
- Add a test to cover the code that fixes 776.
- Update related fixtures and test-data json files.

- Support python 3.13

- Bugfix for Adam: improve recognition of unknown zigbee devices.

- Add a service to dismiss/delete the Plugwise Notification(s) from within HA Core (plugwise.delete_notification)
- Improve detection of switch-groups and add group switching for the Stretch