remove up/down buttons in edit mode

[fdiblen]

remove up/down buttons for edit mode in identifiers and authors but keep in view mdoe

[jspaaks]

Agree. Maybe additionally, there should be a Remove button on AuthorCardViewing as well.

[jspaaks]

Agree. Maybe additionally, there should be a Remove button on AuthorCardViewing as well.

I'll move this part to a separate issue

[abelsiqueira]

I created #563 with that

[abelsiqueira]

Done in #565