Optimize CARTA frontend by enabling Javascript compression

[brianmajor]

A CARTA developer advises that if we enable compression on the traefik ingress to a session then the CARTA browser experience will be much faster.

https://doc.traefik.io/traefik/middlewares/http/compress/

[drtobybrown]

Has this been done? If not, can we bump it up the priority list. It would be very helpful for radio support where large cube viewing in CARTA is a very common use case. Currently we suffer a bit with CARTA responsiveness when data are large.

[at88mph]

I'm in the process of updating our CARTA offering and I think this Middleware could be included in that.

CADC-13474

[at88mph]

A word of warning though; this relies on the request providing the correct accept-encoding header, meaning, the caller should only add those encodings that it actually supports. This is likely always true, happily.

Of note, supported encodings are gzip, br, and zstd.