systemd: Add a meaningful tuned doc link

It was previously pointing to the top-level web console docs.

pkg/systemd/overview-cards/tuned-dialog.jsx

@@ -287,7 +287,7 @@ const TunedDialog = ({
  variant='link'
  isInline
  icon={<ExternalLinkSquareAltIcon />} iconPosition="right"
- href="https://docs.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html-single/managing_systems_using_the_rhel_9_web_console/index">
+ href="https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/monitoring_and_managing_system_status_and_performance/index">
  {_("Learn more")}
  </Button>
  }