Fixes missing CarPlay UI elements in active navigation (#3858)

The issue appeared after #3773 fix.

#3773 changed the order of setup methods in CarPlayNavigationViewController.viewDidLoad().
And this order is important because views are
added on top one another.

The fix is to always add navigation map as
the first view in hierarchy.

Author: S2Ler

Sources/MapboxNavigation/CarPlayNavigationViewController.swift

@@ -476,8 +476,8 @@ open class CarPlayNavigationViewController: UIViewController, BuildingHighlighti
         navigationMapView.mapView.ornaments.options.attributionButton.visibility = .hidden
 
         navigationMapView.navigationCamera.follow()
-        
-        view.addSubview(navigationMapView)
+
+        view.insertSubview(navigationMapView, at: 0)
         navigationMapView.pinInSuperview()
 
         self.navigationMapView = navigationMapView