Hovering the indicators revealed it dimmed alongside the ones that can be
switched on, though there is nothing to do with it there. An indicator can
now opt out of that reveal, and remote session does.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
CustomCommandModule.update() in Bar.qml called root.parseModuleJson(raw)
but the function was removed in 3b970068 (the indicator split). Any
custom command module emitting waybar-style JSON would have crashed on
first poll.
Hoist the helper into Util so both call sites — the bar's custom command
module and BarIndicator.extractData — share one definition.
