title: Webpacker: What is `source_entry_path` and `source_path`?
body: <p>In <a href="https://github.com/rails/webpacker" rel="nofollow noreferrer">Webpacker</a> what is the difference between <code>source_entry_path</code> and <code>source_path</code>? I'm not seeing it explained in the documentation.</p>