Merge pull request #860 from OneSignal/fix/live_activities_bridging

Fix Live Activities methods were not working due to bridge error

Author: jennantilla

ios/Classes/OneSignalPlugin.m

@@ -33,6 +33,7 @@
 #import "OSFlutterSession.h"
 #import "OSFlutterLocation.h"
 #import "OSFlutterInAppMessages.h"
+#import "OSFlutterLiveActivities.h"
 
 
 @interface OneSignalPlugin ()
@@ -70,7 +71,7 @@ + (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
     [OSFlutterSession registerWithRegistrar:registrar];
     [OSFlutterLocation registerWithRegistrar:registrar];
     [OSFlutterInAppMessages registerWithRegistrar:registrar];
-    
+    [OSFlutterLiveActivities registerWithRegistrar:registrar];
 }
 
 - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {