#HTML wrapper

Ok for me.

Code review we made together addressed.

Grimreaper, what do you think about the current state of work? https://git.drupalcode.org/project/ui_patterns/-/merge_requests/261/diffs

It is not finished, I will need to inject the plugin.manager.component_story dependency for example, but it works and it is advanced enough to talk:

• is TwigExtension the best place to put the logic?
• We trigegr the logic only for single component library page ( ui-patterns-stories-full.html.twig) ?
• _story or story for the variable injected in library_wrapper ?
• ...