message: Fix warning mismatch type notification (mac)
diff: @@ -1835,7 +1835,7 @@ void on_idle_notification(
  const char *guid,
  const char *since,
  const char *duration,
  - const uint64_t started,
  + const int64_t started,
  const char *description)
  {
  IdleEvent *idleEvent = [[IdleEvent alloc] init];
  