Fix logging and tutorials

[Marius1311]

Fix a small bug in the fast cca computation and update tutorials to work with new parameter names.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.08%. Comparing base (689458e) to head (c3b6d79).
⚠️ Report is 26 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #43      +/-   ##
==========================================
+ Coverage   87.07%   87.08%   +0.01%     
==========================================
  Files          13       13              
  Lines        1168     1169       +1     
==========================================
+ Hits         1017     1018       +1     
  Misses        151      151              

Files with missing lines	Coverage Δ
src/cellmapper/model/cellmapper.py	83.33% <100.00%> (+0.15%)	⬆️
src/cellmapper/model/embedding.py	89.58% <ø> (-0.22%)	⬇️

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