Fix plot_interactive in MvNormal and Dirichlet

[rohanbabbar04]

Description

Looks like there is an issue with plot_interactive method, because of mismatch in positional arguments.

• baseline is missed, leading to errors.

Checklist

• Code style is correct (follows ruff guidelines)
• New features are properly documented (with an example if appropriate)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.35%. Comparing base (fc51b16) to head (9fd2647).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
preliz/distributions/continuous_multivariate.py	20.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #720      +/-   ##
==========================================
- Coverage   82.38%   82.35%   -0.04%     
==========================================
  Files         110      110              
  Lines        9566     9571       +5     
==========================================
+ Hits         7881     7882       +1     
- Misses       1685     1689       +4     

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[rohanbabbar04]

The docs are failing, I think it is related to some issue in bambi.