[B10] Extending multi-function button capabilities with Toggle mode

The current logic of the programmable steering wheel button is unidirectional. While pressing the button applies defined settings, it does not allow for a quick reversal of those changes. To restore the vehicle's previous state, the driver is forced to manually navigate through the on-screen menus or restart the entire system, which is impractical. I propose implementing a "Toggle" functionality for the multi-function button. A subsequent press (alternatively: a single or double click) should undo the changes and revert to the settings active before the shortcut was triggered. Every such operation—both activation and deactivation of the assigned functions—must be clearly and unambiguously communicated on the instrument cluster display (the small screen behind the steering wheel) to ensure the driver is fully aware of the vehicle's current system status.