Doc changes for ecosystem consistency

[benjeffery]

Summary

• Fixed typography: pygment_dark_style to pygments_dark_style
• Standardized version display to logo approach
• Updated jupyter-book version to 1.0.4.post1
• Added missing sphinx extensions for consistency

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.32%. Comparing base (9d6ad61) to head (44c5c53).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #103   +/-   ##
=======================================
  Coverage   97.32%   97.32%           
=======================================
  Files           6        6           
  Lines         337      337           
  Branches       56       56           
=======================================
  Hits          328      328           
  Misses          7        7           
  Partials        2        2           

Flag	Coverage Δ
tszip	97.32% <ø> (ø)

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