root: save email template directory in config

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/lib/default.yml

@@ -48,6 +48,7 @@ email:
   use_ssl: false
   timeout: 10
   from: authentik@localhost
+  template_dir: /templates
 
 outposts:
   # Placeholders:

authentik/root/settings.py

@@ -230,7 +230,7 @@ ROOT_URLCONF = "authentik.root.urls"
 TEMPLATES = [
     {
         "BACKEND": "django.template.backends.django.DjangoTemplates",
-        "DIRS": ["/templates"],
+        "DIRS": [CONFIG.y("email.template_dir")],
         "APP_DIRS": True,
         "OPTIONS": {
             "context_processors": [