- Modify sensor and switch setup to use `extend` instead of list
reassignment. This prevents overwriting entities from previously
processed devices.
- Update `OwletBaseEntity` initialisation to correctly store the
coordinator instance.
- Refine device information retrieval using `getattr` for enhanced
robustness and provide more specific device details (e.g., serial
number in name).
This change addresses a bug where, in setups with multiple Owlet devices,
only the entities belonging to the last device in the configuration
were registered. Using `extend` ensures all entities across all devices
are correctly added. Device information presentation is also improved.
Marjo Wenzel van Lier
1244bffcb4