snapshots: "N others this day" display (#50011)

wcs/templates/wcs/backoffice/snapshots.html

@@ -15,11 +15,13 @@
     {% if snapshot.user_id %}({{ snapshot.user }}){% endif %}
     {% if snapshot.new_day and snapshot.day_other_count %}(<a class="reveal"
             href="#day-{{ snapshot.timestamp|date:"Y-m-d"}}">
+    {% if snapshot.day_other_count >= 50 %}<strong>{% endif %}
     {% blocktrans trimmed count counter=snapshot.day_other_count %}
 1 other this day
 {% plural %}
 {{ counter }} others this day{% endblocktrans %}
     </a>){% endif %}
+    {% if snapshot.day_other_count >= 50 %}</strong>{% endif %}
     —
     <a href="{{snapshot.id}}/view/">{% trans "View" %}</a>
     —