Explore supporting a textual dns name for the server in the config file

[ArthurMitchell42]

Discussed in https://github.com/ArthurMitchell42/nutcase/discussions/53

^{Originally posted by alex6dj May 23, 2024} Hi, Im testing nutcase and looks great. I have a little request seems that the server section only supports an IP address but my server dont have a fixed IP. I think in the future this can be supported.

servers:
  - server: "192.168.10.100" # -> nas-server

Thanks for the great work. Note: English is no my main language