chore(clerk-js): Migrate to rspack for building

[brkalow]

Description

• Migrate to rspack for building
• Simplify bundle analysis command
• Remove webpack dependencies

TODO:

• [ ] old safari version compat
• [ ] refactor configs: remove dead / commented out code, clarify config generation
• [ ] improve build output to expose more stats at a glance
• [ ] more testing

Checklist

• [ ] npm test runs as expected.
• [ ] npm run build runs as expected.
• [ ] (If applicable) JSDoc comments have been added or updated for any package exports
• [ ] (If applicable) Documentation has been updated

Type of change

• [ ] 🐛 Bug fix
• [ ] 🌟 New feature
• [ ] 🔨 Breaking change
• [ ] 📖 Refactoring / dependency upgrade / documentation
• [ ] other:

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 6b829383112f215b7c369c780b5944679ea239a7

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

This PR includes changesets to release 5 packages

Name	Type
@clerk/clerk-js	Patch
@clerk/elements	Patch
@clerk/chrome-extension	Patch
@clerk/clerk-expo	Patch
@clerk/ui	Patch

Not sure what this means? Click here to learn what changesets are.

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