Reorganise schemas a little bit

Fix loading connection settings

Fix linter warnings in connections

Fix connection class imports

License information

Merge branch 'master' into refactor/dev/connections

prettier

Move redirect uri generation to getRedirectUri function of Connection class. ...

Use api_endpointPublic instead of cdn_endpointPublic

Add Youtube connection

replace node-fetch with wretch

add Xbox connection

add Twitter connection

Add Twitch, error handling, revokation changes, etc

Refreshable connections, refactoring, access-token endpoint ...

- Aded /users/@me/connections/:connection_name/:connection_id/access-token
- Replaced `access_token` property on ConnectedAccount with `token_data` object for refreshing tokens
- Made a common interface for connection things like ComonOAuthTokenResponse
- Added `RefreshableConnection` class
- Added token refresh to Spotify connection (disabled)

Switch from Github real name to username for GH connection

Add discriminator usernames for Discord connection

fix discord connection

Add spotify connection

Add reddit connection

Add facebook connection

add epic games connection

WIP Discord connection

`handleCallback` returns connection if created for `USER_CONNECTIONS_UPDATE`

adding connection now works

add connections