#160 Parcel number to parcel table

* adds number of all underlying parcels into parcel table
* reworks minor code parts of parcel related logic
* fixes bug where under certain circumstances a parcel would have been added twice to a geometry
* removes unused parcel fetching on intervention detail view

intervention/views.py

@@ -266,14 +266,11 @@ def detail_view(request: HttpRequest, id: str):
         instance=intervention,
     )
 
-    parcels = intervention.get_underlying_parcels()
-
     context = {
         "obj": intervention,
         "compensations": compensations,
         "has_access": is_data_shared,
         "geom_form": geom_form,
-        "parcels": parcels,
         "is_default_member": in_group(_user, DEFAULT_GROUP),
         "is_zb_member": in_group(_user, ZB_GROUP),
         "is_ets_member": in_group(_user, ETS_GROUP),