[iOS] Enable full screen swipe back gesture

lib/pages/image_favorites_page/image_favorites_item.dart

@@ -37,6 +37,8 @@ class _ImageFavoritesItemState extends State<_ImageFavoritesItem> {
         initialEp: ep,
         initialPage: page,
       ),
+      enableIOSGesture: false,
+      iosFullScreenGesture: false,
     );
   }
 

lib/pages/image_favorites_page/image_favorites_photo_view.dart

@@ -244,6 +244,8 @@ class _ImageFavoritesPhotoViewState extends State<ImageFavoritesPhotoView> {
                 initialEp: ep,
                 initialPage: page,
               ),
+              enableIOSGesture: false,
+              iosFullScreenGesture: false,
             );
           },
         ),