Extract credentials into a .env file

[upkarlidder]

Background on the problem the feature will solve/improved user experience

The credentials are coded in the src file.

https://github.com/Call-for-Code-for-Racial-Justice/Open-Sentencing-UI/blob/main/web/src/app/services/appid-authentication.service.ts

Describe the solution you'd like

Take out the credentials into .env file

Tasks

FYI @demilolu

[github-actions]

👋 Hi! This issue has been marked stale due to inactivity. If no further activity occurs, it will automatically be closed.

[XiangZhang0216]

Just curious, there are typescript files for environment variables in the web > src >environments directory, would it be better to just make fields for the credentials there?

[github-actions]

👋 Hi! This issue has been marked stale due to inactivity. If no further activity occurs, it will automatically be closed.