Eco account unit tests

* adds eco account unit tests
* adds validity check to eco account form to check on existing deductions and potential conflict with reduced deductable surface
* improves geojson handling on SimpleGeomForm
* adds/updates translation

compensation/views/eco_account/eco_account.py

@@ -150,7 +150,9 @@ def edit_view(request: HttpRequest, id: str):
     data_form = EditEcoAccountForm(request.POST or None, instance=acc)
     geom_form = SimpleGeomForm(request.POST or None, read_only=False, instance=acc)
     if request.method == "POST":
-        if data_form.is_valid() and geom_form.is_valid():
+        data_form_valid = data_form.is_valid()
+        geom_form_valid = geom_form.is_valid()
+        if data_form_valid and geom_form_valid:
             # The data form takes the geom form for processing, as well as the performing user
             acc = data_form.save(request.user, geom_form)
             messages.success(request, _("Eco-Account {} edited").format(acc.identifier))