docs: fix code block highlighting for lines starting with spaces

[shahednasser]

Tokens that start with spaces aren't matched properly. This PR fixes it by comparing against the trimmed line + adding the spaces as a separate non-highlighted token.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
api-reference	🔄 Building (Inspect)	Visit Preview	💬 Add feedback	May 17, 2024 1:23pm
docs-ui	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 17, 2024 1:23pm
medusa-dashboard	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 17, 2024 1:23pm

1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
medusa-docs	⬜️ Ignored (Inspect)	Visit Preview		May 17, 2024 1:23pm

[changeset-bot]

⚠️ No Changeset found

Latest commit: a036a8e

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