Button "Редагувати" from Action Button Group

[GrynivMax]

As an admin I want to have button “Редагувати” in Action button group, so that I can edit article
From US Action Button Group
https://github.com/ita-social-projects/dokazovi-requirements/issues/379
Precondition
User is logged in as an Admin and on the page “Керування матеріалами”
User pressed Action button group

Acceptance criteria
Admin choose button “Редагувати” in Action button group
Publication should be opened in an editor in a new window
Admin can clicks button "Опублікувати" for publish it or click button "Скасувати" to cancel it
Admin has button “Редагувати” in the end of every material