Issue #3260424 by vnech: Display "Follow/Unfollow" button on user profile display modes

    <div class="card__actionbar">

      {% block card_actionbar %}

        <a href="{{ profile_contact_url }}" class="card__link">

        {% if content.flag_follow_user %}

          {{ attach_library('social_follow_user/button') }}

          {{ content.flag_follow_user }}

        {% endif %}

        {% set follow_user_classes = [ content.flag_follow_user ? 'btn btn-default btn-sm' : 'card__link' ] %}

        <a href="{{ profile_contact_url }}" {{ attributes.addClass(follow_user_classes) }}>

          {% if profile_contact_label == 'private_message' %}

            {% if content.flag_follow_user %}

              {% trans %}Message{% endtrans %}

            {% else %}

              {% trans %}Private message{% endtrans %}

            {% endif %}

          {% else %}

            {% trans %}View profile{% endtrans %}

          {% endif %}

        </a>

        {% if not content.flag_follow_user %}

          <a href="{{ profile_stream_url }}" class="card__link hidden-for-phone-only">

            {% trans %}View activities{% endtrans %}

          </a>

        {% endif %}

      {% endblock %}

    </div>

  </div>