Add option to configure cargo doc arguments

[srid]

cargo-doc-live/flake-module.nix

Line 57 in fb1d443

${cargo} doc --document-private-items --all-features

Instead of hardcoding --document-private-items --all-features, allow the user to specify them as module options. Eg.:

{
  cargo-doc-live = {
    cargo-doc-args = "--document-private-items --all-features";
  };
}

[srid]

To implement this, simply look at how we defined the crateName option:

cargo-doc-live/flake-module.nix

Lines 21 to 27 in fb1d443

	crateName = mkOption {
	type = types.str;
	description = "The crate to use when opening docs in browser";
	default = builtins.replaceStrings [ "-" ] [ "_" ]
	((lib.trivial.importTOML (self + /Cargo.toml)).package.name);
	defaultText = "The crate name is derived from the Cargo.toml file";
	};

[srid]

Looks like we can avoid this option entirely by adding this to Cargo.toml?

[package.metadata.docs.rs]
all-features = true
cargo-args = ["--document-private-items"]

https://docs.rs/about/metadata