[UI] Follow buttons has a wrong classes

Problem/Motivation

"View profile" button is painted in the same color as the “Group manager” badge on the group “Members” tab
The same for the “Message” button

Steps to reproduce

1. Enable `social_follow_user` module.
2. Add anyone user to the group as a member.
3. Login user(which was added to the group as a member).
4. Go to the `/group/{name_group}/members`.

Proposed resolution

Improve custom class on the template.

Remaining tasks

N/A

User interface changes

The `View profile` and `Member` have a correct classes and view.

API changes

N/A

Data model changes

N/A