Fix bug in predictive methods of ParetoNBD model with covariates

[ricardoV94]

Description

• Fixed a bug with aligning coords of customer_id in predictive methods (only revelant for model with covariates)
• Make data optional in some methods (missed in Implement ParetoNBD with covariates #545)

Related Issue

• Closes #
• Related to #

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Modules affected

• MMM
• CLV

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

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📚 Documentation preview 📚: https://pymc-marketing--589.org.readthedocs.build/en/589/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.44%. Comparing base (d9c19c4) to head (a95874e).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #589   +/-   ##
=======================================
  Coverage   91.43%   91.44%           
=======================================
  Files          21       21           
  Lines        2137     2139    +2     
=======================================
+ Hits         1954     1956    +2     
  Misses        183      183           

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