Update IAM view controller to hide status bar if full-bleed

Author: jennantilla

iOS_SDK/OneSignalSDK/OneSignalInAppMessages/UI/OSInAppMessageViewController.m

@@ -109,6 +109,11 @@ - (instancetype _Nonnull)initWithMessage:(OSInAppMessageInternal *)inAppMessage
     return self;
 }
 
+- (BOOL)prefersStatusBarHidden {
+    // Only the full-bleed IAM should remove status bar
+    return self.isFullscreen;
+}
+
 - (void)viewDidLoad {
     [super viewDidLoad];