Build process rewrite

[taylortom]

#217

TODO

• Uncouple watch from isProduction flag (i.e. add a ui-specific flag) - think it would be useful to have the flexibility
• Is there a specific reason we've added 2 new glob deps (globby and globs - the latter is imported in the code but not in package) - would be preferable to stick to glob, which is what's used elsewhere (and still looks to be the most popular lib)
• Index handlebars: although recompiled, continue serving the cached version until the node process is restarted

[github-actions]

🎉 This PR is included in version 1.1.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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