Select authentication method

[SimonLab]

For labels we only want to allow users to login with Github. So when creating a new app on auth we can define which methods are allowed to be used to login (Github, Google or Email/password).

Todo

• [ ] During App Creation in the Auth UI we should display a list of checkboxes of the available Auth providers (currently Google, GitHub and Email).

• [ ] All Auth providers should be checked by default as this is the desired behaviour in our "Main" App.
• [ ] Store the selected Apps in the DB on the app record. (TBD)

[nelsonic]

@SimonLab I find myself wanting to use this now. 💭 Let's revisit it next week (or whenever you're back). 🙏