Feature Request: Bluetooth Toggle Hotkey

[JackDV]

Currently, when my ZMK PCB is connected to a profile, and I hit BT_DISC to disconnect to the profile, the keyboard will automatically repair to that profile if nothing else is available.

What I am looking for is a way to disable bluetooth pairing, meaning my PCB can remain turned on, and not connected to a bluetooth profile, even if one is pairable.

Example situation

My PCB has a single profile paired to it, my keyboard is turned on and paired to that profile.

This is what currently happens

1. I hit BT_DISC to disconnect from the profile
2. My keyboard disconnects from the profile
3. My keyboard automatically reconnects from the profile

This is what I would like to happen

1. I hit BT_DISC to disconnect from the profile
2. My keyboard disconnects from the profile
3. My keyboard stays disconnected from the profile

When I brought this up as a question in the ZMK discord, it was suggested a BT_OFF key be added to the &bt list of commands, which seems like it would turn off bluetooth pairing on the keyboard side, meaning there could be pairable profiles available and the keyboard would remain unpaired.

[caksoylar]

Related: #1998

[nmunnich]

#2546 should resolve this