Refactoring bundling and publish process

[jusa3]

• Remove separate rollup and esbuild logic 🔥
• Add vite bundling setup
• Update to Storybook v8
• Update to Storybook v9?
• Update to React 19?
• Add vitest test integration for storybook with POC
• Split into two packages (react/js)
  • src/react and src/js, each with vite.config and package.json. Dev dependencies used in both should be specified in root package.json.
  • Use npm workspaces in root package.json
  • Split storybook into src/react and src/js, try to reuse as much code as possible.
  • Remove createXXX functions from react package and mirror files into src/js to reference react file and contain createXXX-wrapper.
• Test JS package - QueryClientProvider error
• Add tests for React and JS widgets Storybook
  • Migrate Autocomplete and DataContent widgets to new Storybook syntax and add POC tests
  • Migrate all widget stories and add POC tests
  • Add tests
• Adapt CI workflow: change React build and add JS npm publish step (POC: https://www.npmjs.com/package/@sasse/tss-js)
• Adapt documentation CI workflow
  • Investigate "multi-gh-pages" CI setup. Combined publishing multiple storybooks should be no problem. But the current setup seems to support multiple versions of storybook.
    • Check chromatic alternative: https://storybook.js.org/docs/sharing/publish-storybook#publish-storybook-with-chromatic
    • Check addon: https://storybook.js.org/addons/sb-addon-versions
• Update demo projects
  • Update JS demo project (with local/local server iife)
  • Create new demo project (with js npm package)
• Update docs
  • on how to use the new JS package
  • on how to develop with the new project structure

Dev branches:
https://github.com/ts4nfdi/terminology-service-suite/tree/kevinf_project_refactor
https://github.com/ts4nfdi/terminology-service-suite/tree/jusa-refactor-storybook