Add a feature against idle timeout

[clem9669]

Hey 😃

As in the following repo : https://github.com/chervonij/DFL-Colab which redirect to https://colab.research.google.com/github/chervonij/DFL-Colab/blob/master/DFL_Colab.ipynb#scrollTo=IYtWMzOvLQ3s has a feature for "Prevent random disconnects" in Google Colab.

It might be useful for long cracking. ⏲️

Cheers

[mxrch]

Hey, thank you, I'll take a look at it !