Improvements in handles support

[landreev]

What this PR does / why we need it:

Unplanned, and somewhat low effort PR in response to a problem report from a community member. Once I started looking into it, I realized the fix would be trivial, and that a much older issue opened by the same user could be fixed similarly for cheap.

See the release note for the summary of the fixes.

Which issue(s) this PR closes:

• Closes Handle.net PIDs - exception adding files to dataset, file PID registration failed #12174
• Closes Handle.net PIDs - identifier globally visible even for unpublished datasets #8881

Special notes for your reviewer:

I tried to rebase the branch and squash the 3 commits into one. But for whatever reason the first 3 commits are still showing individually. 🤷

Suggestions on how to test this:

See the release note for the summary of the fixes.

The dev. team maintains a fully-functional handles instance with its own name space (hdl:20.500.12050) which should be used for testing anything handles-related.

This can be done on:

1. dataverse-internal: we have our normal DataCite test setup configured as the default pid provider there. But it has an additional pid provider testhandles configured that uses the name space above.
2. Any dev. environment can be configured to use the name space and the handlenet server above. Follow the instructions in the new "Additional Services" tab of the shared dev resources document: https://docs.google.com/document/d/1jDle38XL4ReL8m-c0yGHXs2-jIlqNKFaUa-Qyf9I1VI/edit?pli=1&tab=t.5uif8rchd0ur

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

Is there a release notes update needed for this change?:

Additional documentation:

[coveralls]

coverage: 24.959% (-0.004%) from 24.963% — 12174-file-level-handles into develop

[github-actions]

📦 Pushed preview images as

ghcr.io/gdcc/dataverse:12174-file-level-handles

ghcr.io/gdcc/configbaker:12174-file-level-handles

🚢 See on GHCR. Use by referencing with full name as printed above, mind the registry name.

[pdurbin]

I didn't test this but the change makes sense. Approved!

[pdurbin]

Looks fine but I'm just leaving a comment so we can easily see that "publicRead" is what's being changed:

    this.timestamp = timestamp;
    this.references = references;
    this.adminRead = adminRead;
    this.adminWrite = adminWrite;
    this.publicRead = publicRead;
    this.publicWrite = publicWrite;