pub fn register_command(
id: impl AsRef<str>,
title: impl AsRef<str>,
group: Option<&str>,
keys: &[&str],
)Expand description
Register a plugin command. It becomes runnable from the
palette + optionally bound to one or more key chords in the
host. Keyspec syntax mirrors mnml’s own keymap
("ctrl+shift+t", "<leader>xt", …).
group categorises the command in the palette
("plugin" by default). The registered command runs inside
mnml — most siblings pair this with a toast or a fresh
open-pty follow-up so the user sees the action.