v1.4.23

Added

• The auto power-off feature added in 1.4.22 (#180) is now reachable from the
  app: it follows the headset's own Auto Power Off slider (renamed from
  the unclear "PM Shutdown") instead of requiring the settings file to be
  edited by hand. Setting it to a delay also tells ASM to stop feeding the
  device after that much silence, so the hardware timer can actually fire;
  setting it to "Never" disables both. Existing installs: touch the slider
  once (reselecting the same value works) to pick this up — it is not
  applied retroactively at startup.