feat: enable interaction during transition (#775)

Removed disabling interaction during transition. It should remove the delay of the ability to interact with new screen, but also introduce the ability to click on the transitioning screens.

ios/RNSScreenContainer.m

@@ -193,15 +193,9 @@ - (void)updateContainer
     }
   }
 
-  if (screenRemoved || screenAdded) {
-    // we disable interaction for the duration of the transition until one of the screens changes its state to "onTop"
-    self.userInteractionEnabled = NO;
-  }
 
   for (RNSScreenView *screen in _reactSubviews) {
     if (screen.activityState == RNSActivityStateOnTop) {
-      // if there is an "onTop" screen it means the transition has ended so we restore interactions
-      self.userInteractionEnabled = YES;
       [screen notifyFinishTransitioning];
     }
   }