docs rework and updates, syntax highlighting for env-spec

[philmillman]

got rid of most of the redundant stuff and pages that were no longer necessary

[changeset-bot]

⚠️ No Changeset found

Latest commit: e50a34e

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	varlock-website	e50a34e	Visit preview	May 23 2025, 09:21 PM

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/dmno-dev/varlock/@env-spec/parser@20

npm i https://pkg.pr.new/dmno-dev/varlock@20

commit: e50a34e