Support editing of public deploy keys in Admin page

What does this MR do?

This MR supports the editing of public deploy keys in the Admin page.

Why was this MR needed?

Previously, the key would have a link to it, but it would redirect to a 404 page because editing was not actually supported.

What are the relevant issue numbers?

Closes #1866 (closed)

Screenshot

mentioned in issue #1866 (closed)

Reassigned to @dzaporozhets

@stanhu Changing it in database will not update .authorized_keys. Also I dont think it makes sense to edit ssh keys. Its a constant value. You either add new key or remove existing one.

So the idea is that editing ssh keys should not be supported at all.

Oh right, forgot about that. Ok, easy to delete the link.

Status changed to closed