[Bug] "Device is already configured" should be "Service …"

### Short summary 📝 Leftover reference to "device" ### Detailed description 📋 The message "already_configured": "Device is already configured" should be "Service …" by now as the integration creates services, no more "devices". ### Version 📌 0.2.3-beta ### Environment 🌐 _No response_ ### Logs and screenshots 📂 _No response_