[chore] Global project refactoring

backend/project/api/notifications/serializers.py

@@ -0,0 +1,8 @@
+from notifications.models import Notification
+from rest_framework import serializers
+
+
+class NotificationSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Notification
+        fields = ["title", "content", "read", "created_at"]