fix ruff import sorting errors

backend/authentication/serializers.py

@@ -1,9 +1,10 @@
 import re
 from typing import Any, Dict, Union
 
-from content.models import Resource, Task, Topic
 from django.utils.translation import gettext as _
 from rest_framework import serializers
+
+from content.models import Resource, Task, Topic
 from utils.utils import (
     validate_creation_and_deletion_dates,
     validate_empty,

backend/content/serializers.py

@@ -2,8 +2,9 @@
 from typing import Any, Dict, Union
 
 from django.utils.translation import gettext as _
-from events.models import Format
 from rest_framework import serializers
+
+from events.models import Format
 from utils.utils import (
     validate_creation_and_deletion_dates,
     validate_creation_and_deprecation_dates,

backend/entities/serializers.py

@@ -1,10 +1,11 @@
 from typing import Dict, Union
 
+from django.utils.translation import gettext as _
+from rest_framework import serializers
+
 from authentication.models import User
 from content.models import Resource, Task, Topic
-from django.utils.translation import gettext as _
 from events.models import Event
-from rest_framework import serializers
 from utils.utils import (
     validate_creation_and_deletion_dates,
     validate_empty,

backend/events/serializers.py

@@ -1,9 +1,10 @@
 from typing import Dict, Union
 
-from authentication.models import User
-from content.models import Resource, Task, Topic
 from django.utils.translation import gettext as _
 from rest_framework import serializers
+
+from authentication.models import User
+from content.models import Resource, Task, Topic
 from utils.utils import (
     validate_creation_and_deletion_dates,
     validate_creation_and_deprecation_dates,