feat: aasa view json distribution

* basic webcredentials config for password managers

See https://developer.apple.com/documentation/xcode/supporting-associated-domains for ref

note_kfet/views.py

@@ -6,6 +6,7 @@ from django.urls import reverse
 from django.views.generic import RedirectView
 from note.models import Alias
 from permission.backends import PermissionBackend
+from django.http import JsonResponse
 
 
 class IndexView(LoginRequiredMixin, RedirectView):
@@ -28,3 +29,13 @@ class IndexView(LoginRequiredMixin, RedirectView):
 
         # Non-Kfet members will don't see the transfer page, but their profile page
         return reverse("member:user_detail", args=(user.pk,))
+
+def apple_app_site_association(request):
+    data = {
+        "webcredentials": {
+            "apps": [
+                "P5246D3AFQ.org.crans.bde.note"
+            ]
+        }
+    }
+    return JsonResponse(data)