* [Companion] Radio -> General Settings -> Hardware: Hide external serial port option for Horus; Fix battery voltage and current calibration changes not registering (wrong signal handler name); Prevent modified() event if edited value wasn't actually changed (this is a problem in all panels with onEditingFinished() signals); Fix some cosmetic layout issues when no hardware names are editable.
* [HardwarePanel] Minor layout fix for BT option.
* [HardwarePanel] Fix comparison issue.
* [Companion] Move RadioData constructor.
* [Companion] Move getCapability(SwitchPositions) to Boards class.
* [Companion] Show custom channel, g-var, & curve names throughout UI; Remove redundant name formatting and other unused functions in ModelPrinter and Helpers; Add CustomFunctionData::isEmpty().
* [Companion] Add LogicalSwitchData::isEmpty().
* [Companion] Fix small bug in HardwarePanel.
* [Companion] Rename logical switches to "LSw##" in selections lists to avoid confusion with "L#" and "LS" hardware controls; remove unused RotaryEncoderString().
