Spektate configuration for first time setup needs work

[samiyaakhtar]

In order for users to launch Spektate and setup configuration, there's no clear definition or documentation on where to start. Right now, there's a different list of ~10 environment variables to export for each of the orchestrators Azdo/github/gitlab and there's no error handling or guidance for the user on setting this up.

• bedrock-cli supports setting this up
• for users not using bedrock-cli, create a configuration file / improve docs on Spektate independently.