feat(ui): convert relationship cell texts into links

[danicaleroo]

What / Why

Some clients have told me this before and I also think it's something useful that improves document navigation overall.

It makes it easier to check related documents from list view, otherwise, you'd need to either:

• Navigate to that related collection and find that particular document
• Open the document and then click on the edit button inside of the relationship field (kind of unnecesary most of the time).

Changes introduced

• Added Link component import to the Relationship field component
• Added formatAdminURL utility import for proper admin route construction
• Modified the render logic to wrap document labels with <Link> components that navigate to the related document's edit page.
• Added href generation using formatAdminURL() (after all, needed information was already there, no need for extra API calls or anything).
• Maintained existing behavior for upload fields (FileCell) and edge cases (loading/untitled states)

Behavior after the fix

• Related documents in table cells now appear as clickable links instead of plain text
• Links navigate directly to the related document's edit page in the admin panel
• Multiple related documents each have their own individual clickable link, separated by commas
• Upload field relationships continue to show file previews with existing functionality
• Loading and untitled states remain as plain text (non-clickable)

Concern

I'm not sure if it would be better to make this "configurable" in some way so that developers can enable/disable this or even choose if they want to navigate to that document or open a drawer instead.

How to test manually

1. Run pnpm dev fields or similar
2. Navigate to any collection list view where a relationship field is used (test both single relationships or hasMany relationships)

Video

relationship-cell-link.mp4