Fix reproducibility of initial conditions with the same random seed

[danielhollas]

Although we were initializing the PRNG with the random seed correctly, we then forgot to use it. :-(
This is embarassing, but fortunately does not affect the code in Atmospec which does it correctly.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.71%. Comparing base (b183e05) to head (6528d3c).
Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #12       +/-   ##
===========================================
+ Coverage   15.38%   48.71%   +33.33%     
===========================================
  Files           3        3               
  Lines         117      117               
===========================================
+ Hits           18       57       +39     
+ Misses         99       60       -39     

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[danielhollas]

@JanosJiri let me know if you'd like me to tag you for reviews on harmonwig PRs. :-)

[juraskov]

Looks good! Kudos for fixing a bug!

[JanosJiri]

@JanosJiri let me know if you'd like me to tag you for reviews on harmonwig PRs. :-)

Why not, although I am late here. :D