Documentation updates

[speth]

Changes proposed in this pull request

• Fix usage of the @internal and @see directives in Doxygen docstrings
• Fix a bunch of Python classes / functions that were not included in the Sphinx docs
• Document that eV is an acceptable unit of activation energy

Checklist

• The pull request includes a clear description of this code change
• Commit messages have short titles and reference relevant issues
• Build passes (scons build & scons test) and unit tests address code coverage
• Style & formatting of contributed code follows contributing guidelines
• The pull request is ready for review

[ischoegl]

@speth ... thank you for those fixes! I just have some very minor comments.

[codecov]

Codecov Report

Merging #1296 (ee7ad1f) into main (c040b12) will decrease coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1296      +/-   ##
==========================================
- Coverage   67.26%   67.18%   -0.08%     
==========================================
  Files         314      314              
  Lines       41887    41904      +17     
  Branches    16852    16863      +11     
==========================================
- Hits        28174    28155      -19     
- Misses      11483    11518      +35     
- Partials     2230     2231       +1     

Impacted Files	Coverage Δ
include/cantera/base/AnyMap.h	84.37% <ø> (ø)
include/cantera/base/Units.h	70.00% <ø> (ø)
include/cantera/base/YamlWriter.h	100.00% <ø> (ø)
include/cantera/base/ctexceptions.h	56.52% <ø> (ø)
include/cantera/base/global.h	80.95% <ø> (ø)
include/cantera/base/logger.h	78.57% <ø> (ø)
include/cantera/equil/ChemEquil.h	100.00% <ø> (ø)
include/cantera/kinetics/BlowersMaselRate.h	97.67% <ø> (ø)
include/cantera/kinetics/GasKinetics.h	100.00% <ø> (ø)
include/cantera/kinetics/InterfaceRate.h	87.95% <ø> (ø)
... and 21 more

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[ischoegl]

Thanks - looks good to me!