Fix for related item thumbnail images.

[mspalti]

References

• Fixes Thumbnails in submission forms rendered incorrectly #1974

Description

Fixes problem with missing thumbnails and bad placeholder layouts for relationships in submission forms.

List of changes in this PR:

• Added thumbnail follow link for related item lookups
• Modified html template for ds-existing-relation-list-element to fill entire row regardless of how much text is shown in the item metadata.

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[tdonohue]

👍 Thanks @mspalti ! I tested this today and this fixes the bug. Tested with the Person submission form and verified that both a Publication with a thumbnail and without a thumbnail appears properly when linked to the person.