Add mode function to Continuous class

[rohanbabbar04]

Description

• Should cover up remaining distributions in Continuous which don't have an analytical expression

Checklist

• Code style is correct (follows ruff and black guidelines)
• Includes new or updated tests to cover the new feature

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.26%. Comparing base (f25da81) to head (f797bf0).
Report is 107 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #650      +/-   ##
==========================================
- Coverage   82.23%   74.26%   -7.97%     
==========================================
  Files         101      105       +4     
  Lines        8020     8774     +754     
==========================================
- Hits         6595     6516      -79     
- Misses       1425     2258     +833     

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[aloctavodia]

We can merge, but I would like to manually check this is producing sensible results. Can you list the distributions I should check?

[rohanbabbar04]

These are the 4 distributions:

• ExGaussian
• Rice
• SkewStudentT
• SkewNormal

[aloctavodia]

Thanks!