[WIP] feat(auth): implement generic OIDC login

[razin99]

Closes #703
But its not done yet :3

Shout out to this blog: https://sdoxsee.github.io/blog/2020/02/05/cats-nest-nestjs-mongo-oidc.html
Really helpful to get an implementation up and running

TODO:

• Include actual session store such as redis as an example, current in memory session store causes logout on app restarts

[razin99]

rx-resume-oidc.mp4

Tested to work with Authentik.

[ThatJRadGuy]

definitely keen on this! Nice work

[noahmayr]

Do other auth options keep their session on app restart? Maybe just automatically redirecting to the oauth login if this is the only available auth option would be simpler that way if there's still an authentik session you're logged back in when the app is restarted.