Video is still not being displayed, for some reason

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Update all files that use a QML Menu item to QtQuick.Controls 2.4 to solve the issue of a menu showing up in random places on Android.

Move fly view away from background and into main window. The size different was causing the map not to match the one in plan view.

Move PreflightCheckList to custom builds only. The model, which used to be implemented within BuiltinPreFlightCheckModel is now within the control itself. It is up to the implementer to define a proper model.

Remove old code and fix typo

Fix height

Support 8 servos

Change Survey-In min accuracy

Instead of trying to keep a vehicle type within the FirmwarePlugin instance, pass the vehicle to the function so it can query the type that way.

Fix crash caused by NULL vehicle