Fix broken invoice list template

RIGS/templates/invoice_list_waiting.html

@@ -32,7 +32,7 @@
                 </thead>
                 <tbody>
                 {% for event in object_list %}
-                    <tr {% include 'partials/event_table_colour.html' %}>
+                    <tr class="{{event.status_color}}">
                         <th scope="row"><a href="{% url 'event_detail' event.pk %}">{{ event.display_id }}</a><br>
                             <span class="text-muted">{{ event.get_status_display }}</span></th>
                         <td>{{ event.start_date }}</td>