Update to new starterkit.yml file

Thanks for working on this @jldust. For some reason the /tests folder wasn't getting removed despite it being in the ignore list. I added a work around for that. For some reason the Cypress tests that test the generated theme aren't passing on Tugboat despite them passing locally. Manually testing the changes works. There are some commits I've added that help address the issue but it still isn't fully passing. I don't want to hold this change up any longer though so I'm going to pause here. I think this is good to go otherwise.

@jdust I tested this and it looks good to me. Works great!

Thanks for testing this, I agree about merging this in and creating another ticket to resolve the Cypress testing issues.