Update exception_handlers.py

Author: OleHo370

gs/backend/exceptions/exception_handlers.py

@@ -120,7 +120,7 @@ async def unknown_exception_handler(request: Request, exc: UnknownError) -> HTTP
         """
         return JSONResponse(
             status_code=HTTP_400_BAD_REQUEST,
-            detail=exc.message,
+            content={"detail": exc.message},
         )
 
 
@@ -134,4 +134,4 @@ async def sun_position_exception_handler(request: Request, exc: SunPositionError
         return JSONResponse(
             status_code=HTTP_400_BAD_REQUEST,
             content={"message": exc.message},
-        )
+        )