Option to allow integration of the web ui in a iframe


Currently, PiHole web interface prevents integration inside an iframe (for example, in a panel on home assistant). The lighttpd hardcodes X-Frame-Options option, that needs to be commented in ordre to enable Phiole in iframe:

X-Frame-Options" => "DENY"

Is is possible to add an option to allow users to disable this settings and keep it accross updates?

See: https://github.com/pi-hole/web/issues/67#issuecomment-403977471