Support "classic" bluetooth devices as well as BLE

[anaxonda]

Is your feature request related to a problem? Please describe.
It would be interesting for me to be able to scan for all bluetooth devices in the vicinity, not just BLE devices. One idea is to search for lost phones that would no network except bluetooth.

Describe alternatives you've considered
Possible to look in bluetooth setting menu, but this is quite limited.

[Annietw]

#delete the changes to my Bluetooth app