Quickwit doesn't respect URL prefix behind proxy

[vanchaxy]

Quickwit is currently not fully compatible with reverse proxy setups like Envoy that introduce URL prefixes. This can result in issues with relative URLs and routing. Possible solutions:

1. Use Relative URLs: Modify Quickwit to generate and process relative URLs, which would adapt automatically to the URL prefix introduced by the reverse proxy.
2. Introduce a --base-path Parameter: Quickwit could introduce a command-line parameter (e.g., --base-path) similar to Jaeger's --query.base-path option. This parameter would allow users to specify a base path that Quickwit should consider when generating URLs.