Type hints and configuration

[nstarman]

Description

update the type hints and configuration.

PR Checklist

• Check out the contributing guidelines and code of conduct
• Check out the contributing workflow ( for a practical example click here )
• Give a detailed description of the PR above.
• Ensure linear history by rebasing, when requested by the maintainer.
• Document changes in the CHANGES.rst file. See existing changelog for examples.
• Add tests, if applicable, to ensure code coverage never decreases.
• Make sure the docs are up to date, if applicable, particularly the docstrings and RST files in docs folder.

[codecov]

Codecov Report

Merging #32 (9ba906c) into master (f65d0c2) will decrease coverage by 0.59%.
The diff coverage is 77.58%.

@@            Coverage Diff             @@
##           master      #32      +/-   ##
==========================================
- Coverage   80.96%   80.37%   -0.60%     
==========================================
  Files          21       20       -1     
  Lines        1114     1121       +7     
==========================================
- Hits          902      901       -1     
- Misses        212      220       +8     

Impacted Files	Coverage Δ
trackstream/utils/coordinates.py	65.00% <ø> (-3.19%)	⬇️
trackstream/utils/utils.py	35.71% <35.71%> (ø)
trackstream/example_data/example_orbit.py	40.00% <50.00%> (-1.31%)	⬇️
trackstream/example_data/example_nbody.py	56.52% <75.00%> (ø)
trackstream/preprocess/rotated_frame.py	41.43% <90.90%> (+0.55%)	⬆️
trackstream/__init__.py	100.00% <100.00%> (ø)
trackstream/config.py	100.00% <100.00%> (ø)
trackstream/core.py	100.00% <100.00%> (ø)
trackstream/preprocess/utils.py	100.00% <100.00%> (ø)
trackstream/type_hints.py	100.00% <100.00%> (ø)
... and 1 more

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