Support reload_interval=0

[aircloud]

In tensorboard backend, eload_interval=0 means never reload.
I think the semantics here should be consistent～

In fact, in some scenarios, reload is really not needed, and reload will increase the pressure of the disk

[aircloud]

no response for a long time, maybe the author is no longer maintaining this package?

So as an alternative, I re-released a new package

try:

https://github.com/HFAiLab/jupyterlab_tensorboard_pro