Include more information in the GitHub review body

[cottsay]

Also drop the automated review message from the text representation of the review. It's pretty obvious that it's automated in that context.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.70%. Comparing base (d97c7c2) to head (0df37d7).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #24      +/-   ##
==========================================
+ Coverage   78.48%   86.70%   +8.21%     
==========================================
  Files          13       13              
  Lines         674      677       +3     
  Branches      176      177       +1     
==========================================
+ Hits          529      587      +58     
+ Misses        128       74      -54     
+ Partials       17       16       -1     

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