WIP: use sphinx_autodoc_typehints

[basnijholt]

Description

Please include a summary of the change and which (if so) issue is fixed.

Fixes #(ISSUE_NUMBER_HERE)

Checklist

• [ ] Fixed style issues using pre-commit run --all (first install using pip install pre-commit)
• [ ] pytest passed

Type of change

Check relevant option(s).

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] (Code) style fix or documentation update
• [ ] This change requires a documentation update

[codecov-commenter]

Codecov Report

Merging #386 (f7816ba) into main (6c69e88) will decrease coverage by 0.23%. The diff coverage is 71.42%.

@@            Coverage Diff             @@
##             main     #386      +/-   ##
==========================================
- Coverage   78.08%   77.84%   -0.24%     
==========================================
  Files          37       37              
  Lines        5525     5533       +8     
  Branches      989      991       +2     
==========================================
- Hits         4314     4307       -7     
- Misses       1064     1070       +6     
- Partials      147      156       +9     

Impacted Files	Coverage Δ
adaptive/learner/learner2D.py	76.03% <60.00%> (-0.49%)	:arrow_down:
adaptive/learner/learner1D.py	86.92% <75.00%> (-0.80%)	:arrow_down:
adaptive/runner.py	68.80% <100.00%> (-0.59%)	:arrow_down:
adaptive/_version.py	45.61% <0.00%> (-3.51%)	:arrow_down:
adaptive/learner/average_learner1D.py	73.75% <0.00%> (-1.00%)	:arrow_down:

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