Ability to add more termostates and rename

[remv]

When you first connect SmartThings through Power-ups you click on the link "Connect", this works fine and the app resolves all the thermostats. But if you add more thermostats in ST later you want to go back to the Tibber app and "add it" through the Power-up without having to write the API Token again.

Suggestion: Have a "Add/Remove Things" on the SmartThings Power-up, so it`s possible to change it at a later stage without re-connection with the API Token.

Also. When I tested the integration, one of my thermostats name in ST is "Living Room Floor Heating" that seems to be a bit too long for the "Bubbles" on the dashboard. Would be good to be able to rename the Thing in the Tibber app.