Eco Account deduction

* adds deductable_surface to EcoAccount model to provide an easy way to change the deductable amount from an account -> depends on external funding e.g. with AktionBlau or similar
* adds overview of deducted and deductable volume to detail view
* adds check to eco account model, so the deductable_surface can never be larger than the total amount of after_state surface sum
* adds german formating for python logic based number formating
* adds/updates translations

intervention/forms.py

@@ -18,6 +18,7 @@ from compensation.models import EcoAccountDeduction, EcoAccount
 from intervention.models import Intervention, Revocation, RevocationDocument
 from konova.forms import BaseForm, BaseModalForm
 from konova.settings import DEFAULT_LAT, DEFAULT_LON, DEFAULT_ZOOM, ZB_GROUP, ETS_GROUP
+from konova.utils.general import format_german_float
 from konova.utils.messenger import Messenger
 from konova.utils.user_checks import in_group
 from organisation.models import Organisation
@@ -545,7 +546,11 @@ class NewDeductionForm(BaseModalForm):
         if not is_valid_surface:
             self.add_error(
                 "surface",
-                    _("The account {} has not enough surface for a deduction of {} m². There are only {} m² left").format(acc.identifier, form_surface, rest_surface),
+                _("The account {} has not enough surface for a deduction of {} m². There are only {} m² left").format(
+                    acc.identifier,
+                    format_german_float(form_surface),
+                    format_german_float(rest_surface),
+                ),
             )
         return is_valid_surface and super_result