Temperature Graph is not shown until a PID is configured on probes

[marcurs21]

As reported in title, the graph is not shown until i create PID on a probe inserting the GPIOx in the Probe Configuration. Removing the GPIO string from the Probe page and rebooting the SB Elsinore the graph is no longer displayed.

An improvement tips is: give the ability to permanently disable certain temperature probes from the graph (i.e. System sensor con RaspberryPi)

Thanks for you job Doug