Fix the documentation of our flax modules / NNs to be finally readable

[PhilipVinc]

Compare current website https://netket.readthedocs.io/en/latest/api/_generated/models/netket.models.RBM.html#netket.models.RBM

with this PR
https://netket--1641.org.readthedocs.build/en/1641/api/_generated/models/netket.models.RBM.html#netket.models.RBM

Also

master MLP
https://netket.readthedocs.io/en/latest/api/_generated/nn/netket.nn.blocks.MLP.html#netket.nn.blocks.MLP

this PR MLP
https://netket--1641.org.readthedocs.build/en/1641/api/_generated/nn/netket.nn.blocks.MLP.html#netket.nn.blocks.MLP

[PhilipVinc]

Also solves all build errors of our documentation, so now we could theoretically make it error in CI if someone does not write docs correctly...

[PhilipVinc]

unless @gcarleo is against, I'm merging this asap because it's a big improvement...

[gcarleo]

I like it of course, but is there a way to get the methods/attributes of the models ? say, n_parameters etc

[PhilipVinc]

MCState.n_parameters ? or some methods in https://flax.readthedocs.io/en/latest/api_reference/flax.linen/module.html#flax.linen.Module

Those are just the flax models. Before this PR the documentation is essentially unreadable between all the inherited members and stuff that is misrendered.

That's my best effort for now :) before taking a break from all those PRs for a bit.

[codecov]

Codecov Report

Attention: 6 lines in your changes are missing coverage. Please review.

Comparison is base (8ec2f90) 82.50% compared to head (4fbcbf6) 50.25%.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #1641       +/-   ##
===========================================
- Coverage   82.50%   50.25%   -32.26%     
===========================================
  Files         279      279               
  Lines       16762    16260      -502     
  Branches     2543     2532       -11     
===========================================
- Hits        13830     8171     -5659     
- Misses       2309     7449     +5140     
- Partials      623      640       +17     

Files	Coverage Δ
netket/experimental/logging/__init__.py	100.00% <100.00%> (ø)
netket/experimental/logging/hdf5_log.py	64.70% <100.00%> (+0.42%)	⬆️
netket/experimental/operator/pyscf.py	82.45% <100.00%> (ø)
netket/models/deepset.py	44.44% <ø> (-50.30%)	⬇️
netket/models/equivariant.py	45.96% <ø> (-45.55%)	⬇️
netket/nn/blocks/deepset.py	42.85% <ø> (-46.98%)	⬇️
netket/nn/blocks/symmetry_sum.py	45.83% <ø> (-54.17%)	⬇️
netket/nn/symmetric_linear.py	61.34% <ø> (-27.65%)	⬇️
netket/utils/holomorphic.py	57.89% <ø> (-42.11%)	⬇️
netket/vqs/base.py	35.48% <ø> (-60.22%)	⬇️
... and 7 more

... and 236 files with indirect coverage changes

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[gcarleo]

ah yes sorry I meant MCState.n_parameters but that's not a problem, ok to merge! thanks