Survey (Grid) - Save trigger method with the camera settings

Actually the trigger method will not be saved in the survey (grid). So it's inconvenient to change the trigger method for every new auto mission. Very nice would be, if Mission Planner save all camera settings included the trigger method.

Start in the Survey (Grid) workflow and trace how camera settings are saved and restored for a new auto mission. Verify how the trigger method is handled alongside the other camera settings, then confirm that creating another mission preserves the selected trigger method.

Written by the indexing model from the issue text.