Let the user change counters if there's no beacon set for the room

[nesimtunc]

The initial design was able to manually change the counters (still it's same on the web) but in iOS, we designed to be once in at one place since that the case of beacon however we've forgot that user might still need to change the counter when there's no beacon set for the room. For example: using of washing machines or dryers which are can't be automated through beacons.

https://github.com/CoThings-App/ios/blob/master/CoThings/Services/BeaconDetector.swift#L146-L174