Autocomplete refactoring

* refactors konova/autocompletes.py by splitting into individual files and moving them to fitting apps
     * autocomplete files now live in APPNAME/autocomplete/...

user/autocomplete/team.py

@@ -0,0 +1,34 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: ksp-servicestelle@sgdnord.rlp.de
+Created on: 18.08.22
+
+"""
+from dal_select2.views import Select2QuerySetView
+
+from user.models import User
+
+
+class TeamAdminAutocomplete(Select2QuerySetView):
+    """ Autocomplete for share with teams
+
+    """
+    def get_queryset(self):
+        if self.request.user.is_anonymous:
+            return User.objects.none()
+        qs = User.objects.filter(
+            id__in=self.forwarded.get("members", [])
+        ).exclude(
+            id__in=self.forwarded.get("admins", [])
+        )
+        if self.q:
+            # Due to privacy concerns only a full username match will return the proper user entry
+            qs = qs.filter(
+                name__icontains=self.q
+            )
+        qs = qs.order_by(
+            "username"
+        )
+        return qs
+