development: minor clean up to navigation controllers

Sources/iOS/NavigationController.swift

@@ -112,10 +112,10 @@ open class NavigationController: UINavigationController {
      when subclassing.
      */
 	open func prepareView() {
-		view.clipsToBounds = true
+        edgesForExtendedLayout = []
+        view.clipsToBounds = true
 		view.backgroundColor = Color.white
         view.contentScaleFactor = Device.scale
-        edgesForExtendedLayout = []
         
         // This ensures the panning gesture is available when going back between views.
 		if let v = interactivePopGestureRecognizer {

Sources/iOS/PhotoLibraryController.swift

@@ -47,10 +47,10 @@ open class PhotoLibraryController: UIViewController, PhotoLibraryDelegate {
      when subclassing.
      */
     open func prepareView() {
+        edgesForExtendedLayout = []
         view.clipsToBounds = true
         view.backgroundColor = Color.white
         view.contentScaleFactor = Device.scale
-        edgesForExtendedLayout = []
         preparePhotoLibrary()
     }
     

Sources/iOS/RootController.swift

@@ -151,10 +151,10 @@ open class RootController: UIViewController {
      when subclassing.
      */
 	open func prepareView() {
-		view.clipsToBounds = true
+        edgesForExtendedLayout = []
+        view.clipsToBounds = true
         view.backgroundColor = Color.white
         view.contentScaleFactor = Device.scale
-        edgesForExtendedLayout = []
         prepareRootViewController()
 	}