Use hardlinks to reduce disk usage across worktrees

[benjie]

As I find myself working on more branches in parallel within VMs with limited disk storage space, being careful with disk usage is starting to outweigh making node_modules edits safe to do. Thus I'm moving too using hardlinks.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 4298367

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