Template for Vite with React and Template

Also added:

• Package Manager: pnpm
• ESLint with settings from create-react-app
• Prettier
• vite-tsconfig-paths for "absolute" TypeScript imports (import RadioButton from 'components/button/RadioButton') for paths in src

Scripts

• dev: start vite for development (no typechecking!)
• build: build production ready app (with typechecking!)
• prettier:check: check if all files are correctly prettier'd
• lint: verify eslint rules are met