doc: clean examples and add jax-fem

[jacanchaplais]

Relevant issue or PR

Closes #4.

Description of changes

• Create nested directory structure for examples/
• Add JAX-FEM example based on tesseract-jax
• Fix stpyvista render too zoomed in, going blank if user rotates
  • Replaced panel backend with trame
• Add examples section to readthedocs
• Fix JSON pretty printing in Streamlit app for outputs with arrays of dimension 0
• Fix Streamlit number field not displaying numbers with magnitude much less than one

Testing done

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.78%. Comparing base (da625e0) to head (224f589).

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #9   +/-   ##
=======================================
  Coverage   95.78%   95.78%           
=======================================
  Files           3        3           
  Lines         190      190           
  Branches       22       22           
=======================================
  Hits          182      182           
  Misses          5        5           
  Partials        3        3           

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[apaleyes]

Is there any chance you could break down this PR? It is already 3k LoC, and according to checkmarks will grow further. Reviewing such a big PR is not an easy task at all!

In fact, i think most of these checkboxes, except the first maybe, can be their own separate PR. Would be really great to make it more sizeable!

[jacanchaplais]

@apaleyes Totally agree about each checkbox being worthy of its own PR, sorry! There were a few things which came up while I was adding the JAX-FEM example (which was the whole reason for this branch), so it felt natural to patch them as I went, but that was laziness.

It is already 3k LoC, and according to checkmarks will grow further.

I think this may be from the autogenerated dependency management. If you ignore the uv.lock / other dependency files, and the fact that I've changed the name of a directory (so it's logging a lot more diffs than there are), this PR is a lot smaller.

You're right, though. Sorry for the bloated PR. Happy to try splitting this up, although all the work is done now (the checkboxes were left unchecked mainly because I wanted to test).

[jacanchaplais]

We have failing tests, documentation build issues, and code linting issues, so I will definitely split this after all to avoid more bloat.

[apaleyes]

thanks @jacanchaplais ! i know this is not the most pleasant process

[jacanchaplais]

No, it's good, I appreciate the quality control!