mkdocs fix global setting of members: true

[ml-evs]

Closes #1934, supersedes #1935

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (404a48f) 90.79% compared to head (0940da1) 90.77%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1936      +/-   ##
==========================================
- Coverage   90.79%   90.77%   -0.03%     
==========================================
  Files          75       75              
  Lines        4728     4728              
==========================================
- Hits         4293     4292       -1     
- Misses        435      436       +1     

Flag	Coverage Δ
project	90.77% <ø> (-0.03%)	⬇️
validator	90.69% <ø> (-0.03%)	⬇️

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