Add 'View in Source' link to property and individual detail panels

[JohnRDOrazio]

Summary

In Developer mode, the class detail panel has a "View in Source" link that scrolls to the class definition in the source editor. The property and individual detail panels lack this feature.

Current Behavior

• ClassDetailPanel: Has a "View in Source" action that triggers setPendingScrollIri to scroll to the class IRI in the source editor
• PropertyDetailPanel: No "View in Source" link
• IndividualDetailPanel: No "View in Source" link

Desired Behavior

All three detail panels should offer a "View in Source" link in Developer mode that scrolls to the entity's IRI definition in the source editor.

Implementation Notes

• The setPendingScrollIri mechanism already exists and works for any IRI in subject position
• The source IRI index (sourceIriIndex) tracks all subjects, not just classes
• Need to pass onViewInSource (or setPendingScrollIri) callback to PropertyDetailPanel and IndividualDetailPanel
• Only show the link in Developer mode (when the source editor is available)

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