Add more device_class options for switch nodes

[dusan-ivanco]

Feature request: Add more device_class options for switch nodes

Description
Currently, the switch node supports only the switch and outlet device_class.
It would be great if additional device_class options were available:
• light
• cover
• fan
• lock
• siren
• valve

This would allow these entities to be exposed properly in Home Assistant, with correct icons, categories, and expected UI behavior (e.g., light switch showing as a light instead of a generic switch).

Thank you for your great work