add missing whitespaces

Co-authored-by: Dynxsty <jasonlessenich@gmail.com>

Author: danthe1st

src/main/java/net/javadiscord/javabot/systems/qotw/commands/view/QOTWListAnswersSubcommand.java

@@ -35,7 +35,7 @@ public void execute(SlashCommandInteractionEvent event) {
 			return;
 		}
 		OptionMapping questionNumOption = event.getOption("question");
-		if (questionNumOption==null) {
+		if (questionNumOption == null) {
 			Responses.replyMissingArguments(event);
 			return;
 		}