development: updated default settings for PohotoLibraryController,…

development: updated default settings for PohotoLibraryController, SnackbarController, and PageTabBarController

Sources/iOS/NavigationController.swift

@@ -113,8 +113,10 @@ open class NavigationController: UINavigationController {
      */
 	open func prepareView() {
 		view.clipsToBounds = true
-		view.contentScaleFactor = Device.scale
-		
+		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 {
 			v.isEnabled = true

Sources/iOS/PageTabBarController.swift

@@ -191,9 +191,6 @@ open class PageTabBarController: RootController {
      */
     open override func prepareView() {
         super.prepareView()
-        view.clipsToBounds = true
-        view.backgroundColor = Color.white
-        view.contentScaleFactor = Device.scale
         preparePageTabBar()
     }
     

Sources/iOS/PhotoLibraryController.swift

@@ -50,6 +50,7 @@ open class PhotoLibraryController: UIViewController, PhotoLibraryDelegate {
         view.clipsToBounds = true
         view.backgroundColor = Color.white
         view.contentScaleFactor = Device.scale
+        edgesForExtendedLayout = []
         preparePhotoLibrary()
     }
     

Sources/iOS/RootController.swift

@@ -152,7 +152,8 @@ open class RootController: UIViewController {
      */
 	open func prepareView() {
 		view.clipsToBounds = true
-		view.contentScaleFactor = Device.scale
+        view.backgroundColor = Color.white
+        view.contentScaleFactor = Device.scale
         edgesForExtendedLayout = []
         prepareRootViewController()
 	}

Sources/iOS/SnackbarController.swift

@@ -145,9 +145,6 @@ open class SnackbarController: RootController {
      */
     open override func prepareView() {
         super.prepareView()
-        view.clipsToBounds = true
-        view.backgroundColor = Color.white
-        view.contentScaleFactor = Device.scale
         prepareSnackbar()
     }