Fixes compile errors on archiving

lib/ios/RNNNavigationControllerPresenter.m

 #import "RNNNavigationControllerPresenter.h"
 #import "UINavigationController+RNNOptions.h"
 #import "RNNNavigationController.h"
+#import <React/RCTConvert.h>
 
 @implementation RNNNavigationControllerPresenter
 
 	}
 	
 	if (options.topBar.backButton.icon.hasValue) {
-		[navigationController rnn_setBackButtonIcon:[withDefault.topBar.backButton.icon getWithDefaultValue:nil] withColor:[withDefault.topBar.backButton.color getWithDefaultValue:nil] title:[withDefault.topBar.backButton.showTitle getWithDefaultValue:nil] ? withDefault.topBar.backButton.title.get : @""];
+		[navigationController rnn_setBackButtonIcon:[withDefault.topBar.backButton.icon getWithDefaultValue:nil] withColor:[withDefault.topBar.backButton.color getWithDefaultValue:nil] title:[withDefault.topBar.backButton.showTitle getWithDefaultValue:YES] ? [withDefault.topBar.backButton.title getWithDefaultValue:nil] : @""];
 
 	}
 	

lib/ios/RNNNavigationOptions.h

 #import "RNNStatusBarOptions.h"
 #import "RNNPreviewOptions.h"
 #import "RNNLayoutOptions.h"
-#import "RCTConvert+Modal.h"
 
 extern const NSInteger BLUR_TOPBAR_TAG;
 extern const NSInteger TOP_BAR_TRANSPARENT_TAG;

lib/ios/RNNRootViewController.m

 			
 			_customTopBarBackground = [[RNNCustomTitleView alloc] initWithFrame:self.navigationController.navigationBar.bounds subView:reactView alignment:@"fill"];
 			[self.navigationController.navigationBar insertSubview:_customTopBarBackground atIndex:1];
-		} else if (self.navigationController.navigationBar.subviews.count && [[self.navigationController.navigationBar.subviews objectAtIndex:1] isKindOfClass:[RNNCustomTitleView class]]) {
+		} else if (self.navigationController.navigationBar.subviews.count > 1 && [[self.navigationController.navigationBar.subviews objectAtIndex:1] isKindOfClass:[RNNCustomTitleView class]]) {
 			[[self.navigationController.navigationBar.subviews objectAtIndex:1] removeFromSuperview];
 		}
 	} if (_customTopBarBackground && _customTopBarBackground.superview == nil) {

lib/ios/RNNViewControllerPresenter.m

 #import "UIViewController+RNNOptions.h"
 #import "UITabBarController+RNNOptions.h"
 #import "RNNNavigationButtons.h"
+#import "RCTConvert+Modal.h"
 
 @interface RNNViewControllerPresenter()
 @property (nonatomic, strong) RNNNavigationButtons* navigationButtons;

lib/ios/ReactNativeNavigationTests/RNNRootViewControllerTest.m

 
 -(void)testTopBarBackgroundColorWithoutNavigationController{
 	NSNumber* inputColor = @(0xFFFF0000);
-	self.options.topBar.background.color = [[Color alloc] initWithValue:inputColor];
+	self.options.topBar.background.color = [[Color alloc] initWithValue:[RCTConvert UIColor:inputColor]];
 
 	XCTAssertNoThrow([self.uut viewWillAppear:false]);
 }
 -(void)testTopBarTextFontFamily_invalidFont{
 	NSString* inputFont = @"HelveticaNeueeeee";
 	__unused RNNNavigationController* nav = [self createNavigationController];
-	self.options.topBar.title.fontFamily = inputFont;
+	self.options.topBar.title.fontFamily = [[Text alloc] initWithValue:inputFont];
 	//	XCTAssertThrows([self.uut viewWillAppear:false]);
 }