Install python decouple to improve working environment variables in virtual environment

[dakaza98]

Both Bocken and OrdSys use a tool called python-decouple for handling environment variables. It's main benefit over the current solution is that the environment variables (.env-normal file) is only loaded when you run source source_me.sh. This means that if you were to change one of the environment variables you would have to run source source_me.sh again which is not intuitive (this has caused errors before). With Python decouple, the environment files are loaded each time the server is started which is much easier to work with.

It will however require some changes to the .env-normal file of anyone who is working on project moore but its a very simple fix

[dakaza98]

This would also harmonize the env files since the .env file could then be used by both docker and virtual environment. Currently they have to be separated since .env-normal uses export commands. I.e. we could just have one .env-template that you copy and make into .env