[User Story]: enhanced case sharing modal

[chrisdburr]

At the moment, when you share an assurance case with another user you can view whether they are an editor, reviewer, or reader from the following modal:

I would recommend that we show a list of users with a drop-down menu to the right of their username that allows the person sharing the case to easily update their permissions. And then, to the right of this drop-down would be a delete button to stop sharing the case with the user entirely.

This would be preferable, because at the moment if you have added another user to two categories (e.g. editor and reader), you have to delete twice to completely remove access.

With 'Editor' removed

With 'Reader' also removed.