Thanks for adding the cover functionality! I would like to request one small improvement: if the cover status in home assistant is unknown, please enable all buttons. Currently up and down are disabled in the app in that situation.
In my case, the cover status always remains unknown in HA, I do that on purpose: because the cover can also be controlled from a (dumb) wall switch, HA never really can’t know whether the cover is up or down. So therefore I want all buttons to be always enabled (which is the case in the home assistant web interface by the way, in case of an unknown status).