Fix automatic image deletion

api/database/flights.py

@@ -267,7 +267,8 @@ async def delete_flight(id: str) -> FlightDisplaySchema:
         raise HTTPException(404, "Flight not found")
 
     # Delete associated images
-    for image in flight.images:
+    if "images" in flight:
+        for image in flight["images"]:
             await delete_image(image)
 
     await flight_collection.delete_one({"_id": to_objectid(id)})