Reddit report: the header power toggle switches correctly but
displays "backwards" - the button shows the action a click would
perform (e.g. "Aus" while the printer is on), not the printer's
actual current state, which some users find counterintuitive.
Both readings are legitimate, so this adds a per-printer opt-in
(Settings -> Power Switch -> "Aktuellen Status statt Aktion
anzeigen") rather than flipping the default for everyone.
power_status_inverted=0 (default) keeps today's behavior; =1 mirrors
the actual on/off state instead. The backend's power-status parsing
is untouched - only _applyHeaderPowerState() picks which state to
display, so the click handler still always toggles the real state
regardless of display mode.
viewit
7d28ed4e92