Python API docs

[BradyAJohnston]

Initial working on python API docs, including some more technical documentation.

Effort to start being more concrete and formalising how the API should be interacting with, and doing some level of compatibility & deprecation.

• Change code highlighting to match type colors

[codecov]

Codecov Report

Attention: Patch coverage is 45.71429% with 95 lines in your changes missing coverage. Please review.

Project coverage is 77.56%. Comparing base (5bab012) to head (874c1bb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
molecularnodes/scene/base.py	5.00%	76 Missing ⚠️
molecularnodes/blender/material.py	62.06%	11 Missing ⚠️
molecularnodes/entities/molecule/base.py	55.55%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #697      +/-   ##
==========================================
- Coverage   80.14%   77.56%   -2.59%     
==========================================
  Files          78       80       +2     
  Lines        5338     5379      +41     
==========================================
- Hits         4278     4172     -106     
- Misses       1060     1207     +147     

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