fix(storybook-builder): define only necessary process.env globally

[bashmish]

What I did

1. improved security by not allowing to bundle all env vars, especially unnecessarily
2. move env.NODE_ENV to globals defined in the preview index.html, so that rare packages that require it can use it dynamically and rollup can optimise it later as a whole when bundling for production
3. removed prebundling of tiny-invariant as it's not needed anymore which was one of the goals of above changes

[changeset-bot]

🦋 Changeset detected

Latest commit: b133b30

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@web/storybook-builder	Patch

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