feat(api): don't use hyperlinked serializers (#1984)

api/libretime_api/core/serializers/user.py

@@ -2,11 +2,11 @@ from django.contrib.auth import get_user_model
 from rest_framework import serializers
 
 
-class UserSerializer(serializers.HyperlinkedModelSerializer):
+class UserSerializer(serializers.ModelSerializer):
     class Meta:
         model = get_user_model()
         fields = [
-            "item_url",
+            "id",
             "role",
             "username",
             "email",