Update volbrain to main

[niyaziacer]

New extension

Tier 1

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• Extension URL and revision (scmurl, scmrevision) is correct, consider using a branch name (main, release, ...) instead of a specific git hash to avoid re-submitting pull request whenever the extension is updated
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• Screenshot URLs (screenshoturls) are correct, contains at least one
• Content of submitted json file is consistent with the top-level CMakeLists.txt file in the repository (dependencies, etc. are the same)
• Homepage URL points to valid webpage containing the following:
  • Extension name
  • Short description: 1-2 sentences, which summarizes what the extension is usable for
  • At least one nice, informative image, that illustrates what the extension can do. It may be a screenshot.
  • Description of contained modules: at one sentence for each module
  • Publication: link to publication and/or to PubMed reference (if available)
• Hide unused github features (such as Wiki, Projects, and Discussions, Releases, Packages) in the repository to reduce noise/irrelevant information:
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• The extension is safe:
  • Does not include or download binaries from unreliable sources
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Tier 3

Community-supported extensions.

• Documentation, tutorial, and test data are provided for most modules. A tutorial provides step-by-step description of at least the most typical use case, include a few screenshots. Any sample data sets that is used in tutorials must be registered with the Sample Data module to provide easy access to the user.
• Follows programming and user interface conventions of 3D Slicer (e.g., GUI and logic are separated, usage of popups is minimized, no unnecessary custom GUI styling, etc.)
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• All requirements of tiers < 3.

Tier 5

Critically important extensions, supported by Slicer core developers. New Slicer Stable Release is released only if all Tier 5 extension packages are successfully created on all supported platforms.

• Slicer core developers accept the responsibility of fixing any issues caused by Slicer core changes; at least one Slicer core developer (anyone who has commit right to Slicer core) must be granted commit right to the extension's repository.
• Automated tests for all critical features.
• Maintainers respond to questions related to the extension on the Slicer Forum.
• All requirements of tiers < 5.

[niyaziacer]

Updates volbrain.json to use main branch instead of hardcoded commit hash.
This ensures the extension always builds from the latest version.

Addresses feedback from @jamesobutler in #2280

[niyaziacer]

@jamesobutler This PR is ready for review. All checks have passed and I've addressed your previous feedback by removing unnecessary files. Thank you!

[niyaziacer]

Hi! I've fixed the ctkPathLineEdit filters attribute error in commit 09d9937.

Changes:

• Removed .setFilters() calls (method doesn't exist)
• Kept only .nameFilters for file type filtering
• Tested and working in 3D Slicer 5.11.0

Let me know if you need any additional changes!

[jamesobutler]

Those are some errors introduced into Slicer core recently that are subject to change again here soon, so be on the lookout.

[niyaziacer]

Thanks for the heads up! I'll keep an eye on the ctkPathLineEdit API changes in future Slicer releases and update the extension accordingly.