Update master branch to main branch as default branch

[janechu]

Pull Request

📖 Description

This change updates documentation and pipelines to reference main as default branch name instead of master.

👩‍💻 Reviewer Notes

This change also updates broken links in the versioned docs to point to the archived branch. The builds may not kick off properly for this PR however since these are only pipeline and documentation updates I expect nothing should break and future PRs will not be affected.

✅ Checklist

General

• I have included a change request file using $ npm run change
• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.

⏭ Next Steps

After this PR is merged, a new branch will be created from master called main and be set as the default branch.