feat: Hide messages from suspicious users in streamer mode (#6042)

This is a setting that's enabled by default and can be disabled under
the "Streamer mode" sub-category in the settings dialog

src/providers/twitch/eventsub/MessageBuilder.cpp

@@ -704,10 +704,12 @@ MessagePtr makeSuspiciousUserMessageHeader(
     if (event.lowTrustStatus == lib::suspicious_users::Status::Restricted)
     {
         headerMessage = u"Restricted"_s;
+        builder->flags.set(MessageFlag::RestrictedMessage);
     }
     else
     {
         headerMessage = u"Monitored"_s;
+        builder->flags.set(MessageFlag::MonitoredMessage);
     }
 
     auto hasType = [&](lib::suspicious_users::Type type) {