Add user.created and user.last_login to User details and list in the admin interface

arkindex/users/admin.py

@@ -58,13 +58,16 @@ class UserAdmin(BaseUserAdmin):
     form = UserChangeForm
     add_form = UserCreationForm
 
+    readonly_fields = ("created", "last_login",)
+
     # The fields to be used in displaying the User model.
     # These override the definitions on the base UserAdmin
     # that reference specific fields on auth.User.
-    list_display = ("email", "display_name", "is_admin", "created")
+    list_display = ("email", "display_name", "is_admin", "created", "last_login")
     list_filter = ("is_admin", )
     fieldsets = (
         (None, {"fields": ("email", "display_name", "verified_email", "password")}),
+        (None, {"fields": ("created", "last_login")}),
         ("Permissions", {"fields": ("is_admin", "is_active", "can_upload_s3_image", "can_create_iiif_image", "can_ingest", "can_create_worker_version", "can_manage_workers")}),
     )
     # add_fieldsets is not a standard ModelAdmin attribute. UserAdmin