Share intervention settings

* extends share link form to share settings form
* adds list of users with access to the intervention
* adds logic for removing these users
* enhances translations

intervention/views.py

@@ -254,12 +254,21 @@ def create_share_view(request: HttpRequest, id: str):
     user = request.user
     intervention = get_object_or_404(Intervention, id=id)
     form = ShareInterventionForm(request.POST or None, instance=intervention, request=request)
-    if request.method != "GET":
+    if request.method == "POST":
+        if form.is_valid():
+            form.save()
+            messages.info(
+                request,
+                _("Share settings updated")
+            )
+            return redirect(request.META.get("HTTP_REFERER", "home"))
+    elif request.method == "GET":
+        context = {
+            "form": form,
+        }
+        context = BaseContext(request, context).context
+        return render(request, form.template, context)
+    else:
         raise NotImplementedError
-    context = {
-        "form": form,
-    }
-    context = BaseContext(request, context).context
-    return render(request, form.template, context)