1.2.0

What's Changed

• Add an entity watcher to monitor if a TRV or sensor is disconnected by @KartoffelToby in #1034
• Add an entity battery observer, used in the companion UI (BT UI 1.1.0)
• Update Contribution guide
• Update readme

Fixes

• #1015 @KartoffelToby
• #1024 @KartoffelToby
• #1033 @KartoffelToby
• #1016 @KartoffelToby
• #1030 @KartoffelToby

Full Changelog: 1.1.0...1.2.0