Intervention revocation

* adds Revocation model to interventions/models.py
* adds revocations to interventions detail view
* fixes duplicated ids in html includes
* refactors controls for detail view into included template files (controls.html)
* reduces max length for payment transfer notes from 1000 to 200
* adds RevocationAdmin to intervention/admin.py
* adds new form for adding a Revocation to an intervention's legal_data
  * only one revocation per intervention possible
  * removes add button in case of an existing revocation
* adds revocation routes to intervention app
* renames document field in Document model into file for more clarity
* adds/updates translations

compensation/forms.py

@@ -47,7 +47,7 @@ class NewPaymentForm(BaseModalForm):
         )
     )
     transfer_note = forms.CharField(
-        max_length=1000,
+        max_length=200,
         required=False,
         label_suffix=_(""),
         label=_("Transfer note"),
@@ -55,7 +55,6 @@ class NewPaymentForm(BaseModalForm):
     )
 
     def __init__(self, *args, **kwargs):
-        self.template = "modal/modal_form.html"
         super().__init__(*args, **kwargs)
         self.intervention = self.instance
         self.form_title = _("Payment")