Configures the path to a custom-build of the Admin UI app.
stringThe path to the compiled admin UI app files. If not specified, an internal
default build is used. This path should contain the vendure-ui-config.json file,
index.html, the compiled js bundles etc.
string'admin'Specifies the url route to the Admin UI app.
() => Promise<void>The function which will be invoked to start the app compilation process.