Automatically generated hooks' names #1
Description
Currently we have to write hooks' names by hand (optionally with using a parent hook's name passed along with other data). The idea is to generate a hook name based on the template name.
@SyliusAdmin/Security/login.html.twig -> sylius_admin.security.login
@SyliusAdmin/CatalogPromotion/header.html.twig -> sylius_admin.catalog_promotion.header
some_template.html.twig -> <predefined_via_configuration_prefix, by default: app>.some_template