[1.9.3]
Update beszel to 0.21.2
Full Changelog
Add an actions menu with alert settings to the system detail page (#2803)
Add FAN_SENSORS to include or exclude fan sensors (#2713)
Add styled HTML alert emails (#2697)
Add no_self_update build tag to disable hub and agent self-updates (#2724)
Add video encode/decode engine usage to GPU metrics when using nvtop (#2749)
Limit sign-in attempts to 10 per minute per address (#2642)
Improve GPU collection retries and back off slow or repeatedly failing reads (#2705, #2687, #2709, #2656)
Fix hub crashes caused by null entries in agent data (#2834)
Fix agent health checks incorrectly reporting disconnected agents as healthy (#2825)
Fix agents being able to overwrite another system's container, service, S.M.A.R.T., or ZFS records (#2835)
