Check engaged Simple and super simple mode

it would be important to show on Mission Planners the activation and deactivation of the Simple and Super simple mode by the flight control

Start by locating the Mission Planner UI and flight-control state handling for Simple and Super simple mode. Trace how mode activation and deactivation arrive from the flight controller, then determine where both transitions should be shown in the planner. Done means the UI visibly reports each activation and deactivation.

Written by the indexing model from the issue text.