feat: v-next

[ComfortablyCoding]

This PR introduces the next major version of this package.

TODO

• [x] move codebase to ESM (build will be ESM + CJS)
• [x] use pnpm over rpm
• [ ] update codebase
  • [x] remove unnecessary abstractions
  • [x] add parent Route class
  • [ ] add custom error per clickup api spec
  • [x] add new endpoints
  • [x] remove outdated packages
  • [x] update prettier and eslint rules
  • [ ] add automatic rate limiting
• [x] use vitest for testing and update tests accordingly
• [ ] update docs with new functions and breaking changes