modify calculation of week type

[kaze-droid]

Context

Resolves Issue #3869

Implementation

Check if its a weekend on special acad weeks (recess, reading, examination) before returning the weekType

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.68%. Comparing base (988c6fd) to head (a3b710a).
Report is 21 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3870      +/-   ##
==========================================
+ Coverage   54.52%   54.68%   +0.15%     
==========================================
  Files         274      274              
  Lines        6076     6099      +23     
  Branches     1455     1460       +5     
==========================================
+ Hits         3313     3335      +22     
- Misses       2763     2764       +1     

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[kokrui]

Thanks for the PR! This looks like a reasonable implementation to me for this edge case. I'll add to the comments here and there and get this merged.