EMA

* adds Ema model (basically Compensation inherited)
* adds index view for EMAs
* fixes drop-down link bug for menu 'More' in navbar
* refactors some more forms to use process_request()
* adds modified attribute to BaseResource for easy last_modified check
* adds setting of modified attribute in all places where UserAction.EDITED is added to log
* adds EMA_ACCOUNT_IDENTIFIER_LENGTH and EMA_ACCOUNT_IDENTIFIER_TEMPLATE to ema/settings.py
* adds EmaAdmin to ema/admin.py
* fixes wrong title in intervention detail view html for revocations
* adds support for subtitle variable to BaseTable and generic_index.html
* drops next_version attribute from models
* adds/updates translations
* adds default ordering for UserActionLogEntry
   * removes extra ordering in log modal rendering

intervention/tables.py

@@ -50,7 +50,7 @@ class InterventionTable(BaseTable):
     lm = tables.Column(
         verbose_name=_("Last edit"),
         orderable=True,
-        accessor="created__timestamp",
+        accessor="modified__timestamp",
     )
     """
     # ToDo: Decide to keep actions column or to dismiss them
@@ -164,23 +164,3 @@ class InterventionTable(BaseTable):
             icn_class="fas fa-edit rlp-r-inv" if has_access else "far fa-edit",
         )
         return format_html(html)
-
-    def render_ac(self, value, record):
-        """
-        Renders possible actions for this record, such as delete.
-        """
-        intervention = _("Intervention")
-        html = ""
-        html += self.render_open_btn(
-            _("Open {}").format(intervention),
-            reverse("intervention:open", args=(record.id,))
-        )
-        html += self.render_edit_btn(
-            _("Edit {}").format(intervention),
-            reverse("intervention:edit", args=(record.id,)),
-        )
-        html += self.render_delete_btn(
-            _("Delete {}").format(intervention),
-            reverse("intervention:remove", args=(record.id,)),
-        )
-        return format_html(html)