[6.11.5] Cannot override default temperature thresholds for disks

When default thresholds are set, UI does not allow me to override them on individual devices. I think this is UI only bug as `value` attribute in `input` html tag is wrongly generated (or conflicts with something else e.g. javascript):

This should work under normal conditions, but there might be some javascript code that prevents the input (I've not checked).

If I change the html attribute from 

value

to

value=""

like so:

I am able to change and apply the values. 

This happens in Brave browser (e.g. chromium)