[Timebox] Provide an OAuth2 authentication for Zapier or any other external service

[martmull]

Today, we can connect external services using Api Keys. But we want to go further and connect using OAuth2

The goal is to let any user to connect an external service (like Zapier) using its Twenty account with OAuth2

• follow this doc to implement what is necessary using the Zapier example -> https://platform.zapier.com/build/oauth
• generalize for any external app

How to?

https://medium.com/google-cloud/understanding-oauth2-and-building-a-basic-authorization-server-of-your-own-a-beginners-guide-cf7451a16f66