Battery level for smoke detector

[jas23]

I would like to see the battery level for the "smoke detector" tile, just like I can see the battery level for the "water leak sensor".

Also would be nice if the default icon had the strikeout symbol, just like the water leak sensor.

Thank you.

[velvetfoot]

I don't know about the strikeout, but battery would be nice, for CO as well, for the legacy dashboard as well:

[jtmpush18]

Flagging: @moncho1138