Ethan McGee

I fought around with this tonight and created a simple `docker-compose.yml` that can get the project up and going. ```yaml version: '3.7' services: db: image: postgres:14 environment: POSTGRES_PASSWORD: password restart:...

This pull request adds support for generic OAuth2 providers like Fusion Auth (https://fusionauth.io). I've also added a sample `docker-compose.yml` file to help with deploying the project more easily.

I also fixed an issue where the OTP / OTC codes did not work in mobile safari (and added integrity hashes / nonces for security)

@m-barthelemy I have reviewed all your comments and made the changes you requested. I've tested this using my local setup and all seems good on both desktop and mobile. There...