PloverDB returning 308 status code when `/query` is called on the API

See [RTXteam/RTX issue 2128](https://github.com/RTXteam/RTX/issues/2128)

I suspect this is because of the trailing slash in this decorator:
https://github.com/RTXteam/PloverDB/blob/a17cb7d7f634cd433593bcd2b5b7ddcf0dfedfd3/app/app/main.py#L20

