Make preview of merged record editable

[maxpatiiuk]

In Agent merging, when you open a preview of the final merged record, the preview is read-only.

[chanulee1]

Preview appears to be editable.

H9oMBu8MTj.mp4

https://coldfish-agent-merging.test.specifysystems.org/specify/query/128/

[maxpatiiuk]

Preview should be editable - works like expected