Merge branch 'add-pencil-icon-to-group-page' into 'master'

Add pencil icon to edit group settings

Move icons to upper-right corner of group page

Before:

![image](/uploads/6694c33eae6e10a4e21efef465a07114/image.png)

After:

![image](/uploads/0c17c2cf89fc0fde4344911b30f2635c/image.png)

Closes #6038

See merge request !2361