[Feature request] Onboarding tool

[JamyGolden]

Is your feature request related to a problem? Please describe.

It can be a bit tedious setting up everything from scratch in the config.toml. Needing to find the urls to the different repos and name them. Also tinted-shell is included as the default template repo if no template repo is included. This may not be what the user wants but since tinty isn't useful without at least 1 template repo, a default is applied.

Describe the solution you'd like

Add a new command which onboards the user, asking them which templates they want etc and generating the config.toml for them.