better logic for identifying group manager

bookwyrm/templates/groups/members.html

@@ -38,6 +38,11 @@
           <span title="{{ member.display_name }}" class="is-block is-6 has-text-weight-bold">{{ member.display_name|truncatechars:10 }}</span>
           <span title="@{{ member|username }}" class="is-block pb-3">@{{ member|username|truncatechars:8 }}</span>
       </a>
+      {% if group.manager == member %}
+      <span class="icon icon-star-full" title="Manager">
+        <span class="is-sr-only">Manager</span>
+      </span>
+      {% endif %}
       {% include 'snippets/add_to_group_button.html' with user=member minimal=True %}
       {% if member.mutuals %}
       <p class="help">
@@ -59,7 +64,6 @@
           {% trans "Follows you" %}
       </p>
       {% endif %}
-      {% identify_manager %}
     </div>
     {% endfor %}
   </div>

bookwyrm/templatetags/bookwyrm_tags.py

@@ -1,7 +1,6 @@
 """ template filters """
 from django import template
 from django.db.models import Avg
-from django.utils.safestring import mark_safe
 
 from bookwyrm import models, views
 
@@ -99,15 +98,3 @@ def mutuals_count(context, user):
     if not viewer.is_authenticated:
         return None
     return user.followers.filter(followers=viewer).count()
-
-@register.simple_tag(takes_context=True)
-def identify_manager(context):
-    """boolean for whether user is group manager"""
-    group = context['group']
-    member = context['member']
-    snippet =  mark_safe('')
-
-    if group.manager == member:
-        snippet = mark_safe('<span class="icon icon-star-full" title="Manager"><span class="is-sr-only">Manager</span></span>')
-
-    return snippet