Start the Volt file watcher for development.
Reads configuration from config :volt and config :volt, :server.
CLI flags override config values.
mix volt.devOptions
--root— asset source directory (default from config or"assets")--watch-dir— additional directory to watch (repeatable)--tailwind— enable Tailwind CSS rebuilds--tailwind-css— custom Tailwind input CSS file--tailwind-outdir— directory to write rebuilt CSS (default:"priv/static/assets/css")--target— JS target (default:es2020)