fix: move future meetings button in group meetings page to the left (#8239)

ietf/templates/group/meetings.html

@@ -40,7 +40,7 @@
     {% if future %}
         <h2 class="mt-5" id="futuremeets">
             Future Meetings
-            <a class="float-end"
+            <a class="ms-2"
                aria-label="icalendar entry for all scheduled future {{ group.acronym }} meetings"
                title="icalendar entry for all scheduled future {{ group.acronym }} meetings"
                href="{% url 'ietf.meeting.views.upcoming_ical' %}?show={{ group.acronym }}">
@@ -174,4 +174,4 @@
             ietf_timezone.initialize('local');
     });
     </script>
-{% endblock %}
+{% endblock %}