Change HAST Autodiscover unique IDs to match latest recommendations

[thorrak]

          If the additions are to be made, then it would probably also be advisable to set the "unique_id" as recommended, wouldn't it?

• https://www.home-assistant.io/faq/unique_id/
• https://developers.home-assistant.io/docs/entity_registry_index/

Originally posted by @fkroepfl in https://github.com/thorrak/tiltbridge/issues/248#issuecomment-1952562284