message: Change api to addExtra
diff: @@ -36,8 +36,8 @@ RCT_EXPORT_METHOD(activateStacktraceMerging:(RCTPromiseResolveBlock)resolve
  if (params != nil && params.count > 0) {
  for (id param in params) {
  if ([param isKindOfClass:NSDictionary.class] && param[@"__sentry_stack"]) {
  - [[SentryClient shared] setExtra:@"__sentry_address" value:[NSNumber numberWithUnsignedInteger:callNativeModuleAddress]];
  - [[SentryClient shared] setExtra:@"__sentry_stack" value:param[@"__sentry_stack"]];
  + [[SentryClient shared] addExtra:@"__sentry_address" value:[NSNumber numberWithUnsignedInteger:callNativeModuleAddress]];
  + [[SentryClient shared] addExtra:@"__sentry_stack" value:param[@"__sentry_stack"]];
  } else {
  if (param != nil) {
  [newParams addObject:param];
  