New Option for Helix Text Editor: programs.helix.extraConfig

[nouritsu]

Description

The title states it pretty clearly, a new option called programs.helix.extraConfig should be introduced.

Why?

Helix relies on the order of keys in the config file for rendering minor modes and langauge support setup.

For instance, in my (WIP) configuration I have

programs.helix.settings.keys.normal.p = { # Obviously not written like this
  p = "paste_after";
  P = "paste_clipboard_after";
  b = "paste_before";
  B = "paste_clipboard_before";
  r = "replace_with_yanked";
  R = "replace_selections_with_clipboard";
};

Which should produce a minor mode p with sub commands ordered p, P, b, B, r, R. However, since keys are sorted alphabetically, it produces the much less readable

Solution

An extraConfig option would allow users append lines to the config keeping order in mind.

[nouritsu]

I would like to make a PR for this as my first contribution to the Nix project :)

[nouritsu]

Reference from Vimjoyer Discord: https://discord.com/channels/1133342557494067232/1133361139250638848/1342653548818599936