fix: id based equality

[smereu]

Description

Introduce id based equality to alleviate problems created by the fact that body occurrences are built on the fly. Component shouldn't strictly be needed but added for consistency.

Issue linked

Please mention the issue number or describe the problem this pull request addresses.

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 unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.89%. Comparing base (623ebb4) to head (0a9140d).
⚠️ Report is 50 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2604      +/-   ##
==========================================
+ Coverage   94.88%   94.89%   +0.01%     
==========================================
  Files         173      173              
  Lines       14441    14449       +8     
==========================================
+ Hits        13702    13712      +10     
+ Misses        739      737       -2     

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