chore: enhancements to GLB export and object plot() methods

[RobPasMue]

Description

Follow up of #1741 - enhancing input variables and internal logic for defaults.

Issue linked

None

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

Attention: Patch coverage is 85.18519% with 4 lines in your changes missing coverage. Please review.

Project coverage is 90.86%. Comparing base (9a67dea) to head (d79b643).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ansys/geometry/core/plotting/plotter.py	80.95%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1750      +/-   ##
==========================================
- Coverage   90.89%   90.86%   -0.03%     
==========================================
  Files          92       92              
  Lines        8217     8236      +19     
==========================================
+ Hits         7469     7484      +15     
- Misses        748      752       +4     

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