[WIP] One index

[MKaHead]

• Export one index
  import { createAXAButtonReact } from '@axa-ch/button';
import AXAButton from '@axa-ch/button';
• Remove Dist build and all hack scripts
• Type module
• Rollup 3
• Only one rollup file

Merge Checklist:

• Code selfreview has been performed (Best Practices).
• Tests are sufficient.
• Documentation is up to date.
• Changelog is up to date.
• Typescript typings for properties are up to date.
• Designers approved changes or no approval needed.
• Dependencies to other components still work.