fix: fix If around shouldUploadEvent (#51)

Author: BrandonStalnaker

ios/RNMParticle/RNMParticle.m

@@ -416,7 +416,7 @@ + (MPCommerceEvent *)MPCommerceEvent:(id)json {
     commerceEvent.action = [RCTConvert MPCommerceEventAction:json[@"productActionType"]];
     commerceEvent.checkoutStep = [json[@"checkoutStep"] intValue];
     commerceEvent.nonInteractive = [json[@"nonInteractive"] boolValue];
-    if json[@"shouldUploadEvent"] != nil {
+    if (json[@"shouldUploadEvent"] != nil) {
         event.shouldUploadEvent = [json[@"shouldUploadEvent"] boolValue]
     }
 
@@ -605,7 +605,7 @@ + (MPEvent *)MPEvent:(id)json {
     event.name = json[@"name"];
     event.startTime = json[@"startTime"];
     event.type = [json[@"type"] intValue];
-    if json[@"shouldUploadEvent"] != nil {
+    if (json[@"shouldUploadEvent"] != nil) {
         event.shouldUploadEvent = [json[@"shouldUploadEvent"] boolValue]
     }