Interface optimization exception status code.

[FrederLu]

https://pudge.explorer.nervos.org/script/0x5a86c3bf1e8648b6a6f8abe6875720ccf9745ab225b68fa7c195f9d6635dea80/type

Request URL: https://testnet-api.explorer.nervos.org/api/v2/scripts/general_info?code_hash=0x5a86c3bf1e8648b6a6f8abe6875720ccf9745ab225b68fa7c195f9d6635dea80&hash_type=type

The interface can optimize the handling of 404 exceptions.
To give users a friendly experience, Status code: 404 is not directly fed back to the user, but a status code is internally agreed to be fed back to the front end.

If there is no data in the search, information similar to

{"data":[],"meta":{"total":0,"page_size":20}}

can be returned.