refactor Paraview code & parcel-model animations

[olastrz]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 72 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.90%. Comparing base (9c4ce2f) to head (5172c47).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
PySDM/exporters/parcel_vtk_exporter.py	0.00%	72 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1725      +/-   ##
==========================================
- Coverage   86.50%   85.90%   -0.60%     
==========================================
  Files         412      413       +1     
  Lines       10372    10444      +72     
==========================================
  Hits         8972     8972              
- Misses       1400     1472      +72     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.