Rename Oobee

[younglim]

This PR adds...

• Renames to oobee
• Todo: Report logos and css

• I've kept this PR as small as possible (~500 lines) by splitting it into PRs with manageable chunks of code
• I've requested reviews from 1 reviewer
• I've tested existing features (website scan, sitemap, custom flow) in both node index and cli
• I've synced this fork with GovTechSG repo
• I've added/updated unit tests
• I've added/updated any necessary dependencies in package[-lock].json npm audit, portable installation on GitHub Actions