update void progress bar

[psauvan]

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Description

locate the progress bar at the position where space division is carried out in the void building process

Fixes issue

Please link to any issues that this PR fixes

Checklist

• I'm making a PR from a feature branch on my fork into GEOUNED-org/GEOUNED/dev branch
• I have followed PEP8 style guide for Python or run a formatter such as black or ruff format on my code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works