Support the new starter frontend installation

[kennyadsl]

Summary

This works out of the box only for a fresh installation of the starter frontend because we can't anticipate what changed in each storefront, but should be a good starting point.

Checklist

Check out our PR guidelines for more details.

The following are mandatory for all PRs:

• [x] I have written a thorough PR description.
• [x] I have kept my commits small and atomic.
• [x] I have used clear, explanatory commit messages.

The following are not always needed (~cross them out~ if they are not):

• [ ] I have added automated tests to cover my changes.
• [ ] I have attached screenshots to demo visual changes.
• [ ] I have opened a PR to update the guides.
• [ ] I have updated the README to account for my changes.