You can unlock a door that's offline

[BigSpaceships]

these should be disabled probably, or the toast should say it failed or something. this might need work on gatekeeper-mqtt too

[aln730]

ComputerScienceHouse/gatekeeper-mqtt#25
#11

I feel like straight up disabling the buttons than a toast would be simple. Also, I made it so that the server rejects the request if door is offline.