I know that my Pi is reporting under-voltage. I also know that in the 5 years it's been running my printer this hasn't made a blind bit of difference to anything I've printed. All my prints come out, if not perfect, way beyond my acceptance level. I do not need this warning every single time I open the webpage. I literally couldn't GAF.
Allow me confirm I understand this 'issue', and allow me to turn off this pointless warning and we're all happy. You've warned me, and I couldn't give a shit - all good.