Previously, there was no way to install the media of an extension

outside if its intsall procedure. Now there is a management command,

install-extension-media, that will install the extension media of an

extension. This behaviour can be forced (e.g., if the extension is

already installed) with the --force option. Either a single

extension's media will be installed (if --extension-id is provided),

or the extension media of all extensions will be installed.

Installed the extension media for a single extension and all enabled

extensions. Verified --force forces installation.