Increase NELM and NSW default values for relaxmakers

[QuantumChemist]

Increase NELM and NSW default values for relaxmakers as (with custodian handlers turned off) jobs don't always converge.

[JaGeo]

We could only activate those handlers. This would also be a possibility but might be simpler to start with adapting the INCAR settings.

[QuantumChemist]

Hmmmm. I'd prefer to simply adjust the INCAR for now as we had a lot of other troubles with the custodian handler. Just seems that for Sb2Se3 we need some more ionic steps and I think it's good to then also increase the electronic steps too.

[JaGeo]

Yes, sure!

But maybe something for our todo. This is the list of default error handlers in atomate2: https://github.com/materialsproject/atomate2/blob/f11ac3709b69e8ce3fef9bfa22f16857e41f116e/src/atomate2/vasp/run.py#L39

[QuantumChemist]

The question is wheter the UnconvergedErrorHandler or NonConvergingErrorHandler will also change ALGO? Because we don't want that, right?

[JaGeo]

Yes, one would need to check each of them carefully. Thus, a new item for the Todo list.

[QuantumChemist]

shall I add it as an issue?

[JaGeo]

Yes, please!