fix: add option to write body facets to explicit export methods

[jonahrb]

Description

these export methods were originally missed when adding this parameter

Issue linked

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

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 86.15%. Comparing base (0bfefb6) to head (10e88fc).

Files with missing lines	Patch %	Lines
src/ansys/geometry/core/designer/design.py	75.00%	1 Missing ⚠️

❌ Your project check has failed because the head coverage (86.15%) is below the target coverage (90.00%). You can increase the head coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (0bfefb6) and HEAD (10e88fc). Click for more details.

HEAD has 3 uploads less than BASE

Flag	BASE (0bfefb6)	HEAD (10e88fc)
	6	3

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2231      +/-   ##
==========================================
- Coverage   94.73%   86.15%   -8.58%     
==========================================
  Files         142      140       -2     
  Lines       10615    10592      -23     
==========================================
- Hits        10056     9126     -930     
- Misses        559     1466     +907     

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[RobPasMue]

LGTM!