Fixes currentTabId options in stack with provided Id

lib/ios/RNNControllerFactory.m

 
 - (UIViewController<RNNRootViewProtocol> *)createStack:(RNNLayoutNode*)node {
 	RNNNavigationController* vc = [[RNNNavigationController alloc] init];
+	[vc setComponentId:node.nodeId];
 	NSDictionary* options = node.data[@"options"];
 	NSMutableArray* controllers = [NSMutableArray new];
 	for (NSDictionary* child in node.children) {

lib/ios/RNNNavigationController.h

 
 @interface RNNNavigationController : UINavigationController <RNNRootViewProtocol>
 
+@property (nonatomic, strong) NSString* componentId;
+
 @end

lib/ios/RNNNavigationController.m

 }
 
 - (NSString *)componentId {
-	return ((UIViewController<RNNRootViewProtocol>*)self.topViewController).componentId;
+	return _componentId ? _componentId : ((UIViewController<RNNRootViewProtocol>*)self.topViewController).componentId;
 }
 
 - (nullable id <UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source {

lib/ios/RNNTabBarController.m

 - (void)setSelectedIndexByComponentID:(NSString *)componentID {
 	for (id child in self.childViewControllers) {
 		RNNRootViewController* vc = child;
-		if ([child isKindOfClass:[UINavigationController class]]) {
-			vc = ((UINavigationController *)child).childViewControllers.firstObject;
-		}
+
 		if ([vc.componentId isEqualToString:componentID]) {
 			[self setSelectedIndex:[self.childViewControllers indexOfObject:child]];
 		}