Pausing IAMs now dismisses any currently showing IAM

Tested that queued IAMs don't show and that lifecycle callback listeners fire.

Author: emawby

iOS_SDK/OneSignalSDK/OneSignalInAppMessages/Controller/OSMessagingController.m

@@ -177,8 +177,13 @@ - (void)setInAppMessagingPaused:(BOOL)pause {
     _isInAppMessagingPaused = pause;
 
     // If IAM are not paused, try to evaluate and show IAMs
-    if (!pause)
+    if (!pause) {
         [self evaluateMessages];
+    } else if (self.isInAppMessageShowing) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            [self.viewController dismissCurrentInAppMessage];
+        });
+    }
 }
 
 + (BOOL)doesDeviceSupportIAM {