Allow Shopware Domain Validation through backend
Allow Shopware Domain Validation through backend

Shopware's Domain Validation was not possible when using the build in [backend option](https://docs.shopware.com/en/shopware-6-en/settings/system/shopwareaccount?category=shopware-6-en/settings/system) because the [php controller](https://github.com/shopware/platform/blob/95e8bc71aa38cfbdcf088baa779591d7a3196723/src/Storefront/Controller/VerificationHashController.php#L30) was never served by nginx due to the regex static asset location block matches all html routes, too. This PR defines a new location block just for this use case: Serve a static file with the name first and falls back to php for `/sw-domain-hash.html`.
Shyim/shopware,Shyim/shopware,Shyim/shopware,Shyim/shopware,Shyim/shopware