Is your feature request related to a problem? Please describe.
Yes, I'm unable to run both of these servers via CLI on the same host.

Describe the solution you'd like
The best solution to maintain backwards compatibility is to make the port configurable via command-line argument and environment variable.

I can't tell what calls this, so for my use case, it would be reasonable to make it configurable to enable or disable this feature or to remove it altogether.

Describe alternatives you've considered
I hope running via CLI is supported. It seems like running via Docker is the preferred method, but I'd like to keep running these on the host in NixOS.

Additional context

• Management listener:

  netbird/management/main.go

  Line 15 in 3f4f825

  log.Println(http.ListenAndServe("localhost:6060", nil))

• Signal listener:

  netbird/signal/cmd/run.go

  Line 200 in 3f4f825

  if err := http.ListenAndServe("127.0.0.1:6060", nil); err != nil {