NOTE: Do not use this package unless you know what you are doing.
This package is used internally by Storybook to create the manager side (UI) of Storybook.
This package uses esbuild to bundle the manager-side of addons, and prepare it for modern, ESM supporting browsers.
Each addon is bundled into a separate file, and the manager is responsible for loading them.
If a manager.* file exists in the config dir (e.g. .storybook), it's also bundled, and loaded in the browser.
Additionally, this package also will add the manager ui via the @storybook/ui package, which is already built by esbuild in our build process before publishing.