fix: badge count not resetting when notifications are cleared

When using badge type "Increase", the cached badge value
(ONESIGNAL_BADGE_KEY) in shared UserDefaults was not explicitly
reset to zero in clearBadgeCount:fromClearAll:. If the swizzled
badge setter did not fire, the NSE would read the stale cached
value and increment from it, producing an incorrect badge count.

Author: nan-li

iOS_SDK/OneSignalSDK/OneSignalNotifications/OSNotificationsManager.m

@@ -801,6 +801,8 @@ + (void)clearBadgeCount:(BOOL)fromNotifOpened fromClearAll:(BOOL)fromClearAll {
         return;
     }
 
+    [OneSignalBadgeHelpers updateCachedBadgeValue:0 usePreviousBadgeCount:false];
+    
     if (@available(iOS 16.0, *)) {
         [[UNUserNotificationCenter currentNotificationCenter] setBadgeCount:0 withCompletionHandler:^(NSError * _Nullable error) {
             if (error) {