Fix work item attributes loading in the modal

What does this MR do and why?

This MR fixes a few attributes missing from work item modal view when we open work item and then reload the page. The main problem is that these attribute widgets were relying on workItemIid prop that is missing when we reload the page - we rely on workItemId from the URL instead:

MR acceptance checklist

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Screenshots or screen recordings

Before	After
before	after

How to set up and validate locally

1. Open any epic
2. Add a child epic
3. Open child epic in the modal
4. Reload the page -->