Allow Authentication via Authelia or Trusted Header SSO

[verybadsoldier]

What is the problem you are trying to solve with this feature?

I am running Homebox at home as a docker container but when accesing from outside my home network I would like to use Authelia for authentication and it would be great if it would be possible to authenticate to Homebox using Authelia.

What is the solution you are proposing?

Implement handling of trused headers as described here: https://www.authelia.com/integration/trusted-header-sso/introduction/#response-headers

What alternatives have you considered?

Proposing a single-user mode in Hombox that does not need authentication so Authelia can be used to authenticat when accessing Homebox from outside network but without the need to pass authentication information from Authelia to Homebox.

Additional context

No response

Contributions

• [X] I have searched through existing issues and feature requests to see if my idea has already been proposed.
• [X] If this feature is accepted, I would be willing to help implement and maintain this feature.
• [ ] If this feature is accepted, I'm willing to sponsor the development of this feature.

[tekjoey]

+1 for this. I don't really care how SSO gets implemented. I only need one user, so removing the built in authentication and using a proxy would be fine by me, I already do that for one app.