Refactor

[Uzlopak]

• make file names kebab-case
• make tests pass on my machine
• make named exports of lib functions
• replace benchmark with tinybench
• make @types/node devDependency

Checklist

• run npm run test && npm run benchmark --if-present
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[Fdawgs]

One of the most descriptive PR titles I've ever seen, alongside update READMEs 😂