refs https://github.com/TryGhost/Team/issues/3150
- wires Timezone setting to read list of timezones and allow editing/saving new value
- handles read/write of real timezone setting from settings context
- uses `@tryghost/timezone-data` to fetch list of all timezones
- adds typings.d.ts to handle missing types for @tryghost/timezone-data
refs https://github.com/TryGhost/Team/issues/3151
- adds a new vite + typescript + storybook + TW package for setting up admin settings in react with base config that works with Ghost monorepo
- includes base components/design system for new settings UI
- adds eslint rule config to the package to match rest of Ghost codebase
- this is an experimental package as we figure out the best patterns for new admin packages in Ghost monorepo
Co-authored-by: Peter Zimon <zimo@ghost.org>