* Fixes timeZone() by no longer needing timeZone()
* Added simple testcase to demonstrate the behaviour of parseZone() vs dayjs()
* Fixed eslint errors
-`<Button/>` component
- Uses `next/link` + `<a/>` if you supply a `href` otherwise `<button/>`
- Add UI sandbox
- Change the `event-types/index` to use a query param for deciding if modal is open or not