Enhance display for metadata fields with many sub-fields

Overview of the Feature Request

• Improve the default visibility and readability of the metadata blocks with many sub-fields.
• Render each sub-field (Title, Author, etc.) on its own line or clearly separated, rather than as one long string.
• Consider: Auto-expand the block in the Metadata tab when it contains values.

What kind of user is the feature intended for?

Depositors & Curators (entering rich data-source information)
Guest / Public users (quickly understanding data provenance)

What inspired the request?

CAFE review of datasets showed that critical provenance details are hidden behind a few clicks and rendered as a single paragraph, making multiple sources hard to parse.

What existing behavior do you want changed?

• All sub-fields are concatenated with semicolons, producing an unreadable block when many values are present.
• The "Metadata About Data Sources" accordion is collapsed by default.

Any brand new behavior do you want to add to Dataverse?

• Each sub-field/value pair is displayed on its own line (or with clearer separators).
• Consider: Option to auto-expand this block when populated.

Are you thinking about creating a pull request for this feature?

Yes