[BUG] "URL not defined" when login #139

Description:

Hi, I'm running the App on my local RC. I did the setup, but when I run /github login, RC crashes with the following error

I guess the error related to OAuth client not properly connected. Could anyone help me on this? Thanks!

Steps to reproduce:

On my side:

1. Local RC running properly
2. Local GitHub App running properly. Slash commands without login work.
3. OAuth client is set up as readme described. Client ID and secret are imported in RC. Tried removing the trailing slash in callback URL (https://community.liaison.rocketchat.digital) but didn't work.

Rocket.Chat Server Setup Information:

• Version of Rocket.Chat Server: 6.7.0-develop
• Version of App Engine: 1.41.0
• Operating System: Mac OS 13.4.1
• Deployment Method: locally

Rocket.Chat Client Setup Information

• Browser Version: Chrome 122.0.6261.94
• Operating System: Mac OS 13.4.1