🗃️(backend) add name field to identity

We need a name for the user when we display the members in the
frontend. This commit adds the name column to the identity model.
We sync the Keycloak user with the identity model when the user
logs in to fill and udpate the name automatically.

src/backend/demo/management/commands/create_demo.py

@@ -11,10 +11,14 @@ from django import db
 from django.conf import settings
 from django.core.management.base import BaseCommand, CommandError
 
+from faker import Faker
+
 from core import models
 
 from demo import defaults
 
+fake = Faker()
+
 logger = logging.getLogger("people.commands.demo.create_demo")
 
 
@@ -134,6 +138,7 @@ def create_demo(stdout):
                         sub=uuid4(),
                         email=f"identity{i:d}{user_email:s}",
                         is_main=(i == 0),
+                        name=fake.name(),
                     )
                 )
         queue.flush()