RemoveModalForm refactoring

* wraps generic request processing logic into RemoveModalForm
* adds delete action to intervention detail compensations.html
* fixes rendering of deleted compensations in intervention detail view

intervention/templates/intervention/detail/includes/compensations.html

@@ -4,7 +4,7 @@
         <div class="row">
             <div class="col-sm-6">
                 <h5>
-                    <span class="badge badge-light">{{intervention.compensations.count}}</span>
+                    <span class="badge badge-light">{{compensations.count}}</span>
                     {% trans 'Compensations' %}
                 </h5>
             </div>
@@ -30,10 +30,13 @@
                 <th scope="col">
                     {% trans 'Title' %}
                 </th>
+                <th scope="col">
+                    {% trans 'Action' %}
+                </th>
             </tr>
             </thead>
             <tbody>
-            {% for comp in intervention.compensations.all %}
+            {% for comp in compensations %}
             <tr>
                 <td class="align-middle">
                     <a href="{% url 'compensation:open' comp.id %}">
@@ -41,6 +44,11 @@
                     </a>
                 </td>
                 <td class="align-middle">{{ comp.title }}</td>
+                <td>
+                    <button data-form-url="{% url 'compensation:remove' comp.id %}" class="btn btn-default btn-modal" title="{% trans 'Remove compensation' %}">
+                        {% fa5_icon 'trash' %}
+                    </button>
+                </td>
             </tr>
             {% endfor %}
             </tbody>