[Bug] Wireless ADB Failed error message documentation is incomplete #263

When a wireless ADB connection fails on macOS, 3 things are suggested: turning it on and then off again, etc.

What isn't suggested is what apparently actually needs to be done, at least in some cases: running "adb pair" from the command line.

If the user hasn't done this in a while, it's easy to forget that this can't be done within AirSync itself (from either side), so it can take some time to figure out that this is the way to fix things. I was looking all over the Airsync AIs on both sides for ADB pairing stuff and was flummoxed that I couldn't find it for a while, finally I did a search and found the right AirSync doc on the website.

Ideally, the app would handle this so the user never has to touch the command line, but just a doc update within the error message itself that pops up on the MacOS side when this is an issue would help a lot.

Note: This is likely also a bug in other desktop operating systems as well, but I use a Mac. It might also make sense to address it on Android, maybe some doc in the permissions screen, as a normal thing for a user to do is to look in the Android app for a re-authentication option.