FIX: Readibility improvements

[maxcapodi78]

Readibility improvements

Description

Fixed many docstrings errors!
modeler of PostCommon class has been made internal.

Issue linked

#5543

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

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[SMoraisAnsys]

If the goal is to make modeler internal, could we make _modeler an attribute of the class instead of a property ? See my comment

[SMoraisAnsys]

You need to modify a signature to use List instead of list. To make that work, you also need to add from typing import List

[codecov]

Codecov Report

Attention: Patch coverage is 80.43478% with 9 lines in your changes missing coverage. Please review.

Project coverage is 85.00%. Comparing base (4ab7475) to head (e4f3a0a).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5544      +/-   ##
==========================================
- Coverage   85.00%   85.00%   -0.01%     
==========================================
  Files         151      151              
  Lines       60761    60761              
==========================================
- Hits        51652    51649       -3     
- Misses       9109     9112       +3