* Add TINYAUTH_AUTH_SUBDOMAINSENABLED option
Setting it to false allows to use Tinyauth on top-level domain only,
but forbids automatic cross-app authentication using Traefik/Nginx.
* fix: inform services and controllers if subdomain cookie domain is enabled
* chore: rabbit feedback
* fix: deny ip addresses for standalone domain
---------
Co-authored-by: Stavros <steveiliop56@gmail.com>