[Design Spec] Accordion

[JeremiasUX]

Jira ticket: https://jira.ets.mpi-internal.com/browse/DO-1690

### Tasks
- [ ] Investigate if we need accordion and collapsible
- [ ] Investigate the different platform needs
- [ ] Investigate the product use cases
- [ ] Spec sheet
- [ ] ZH-documentation
- [ ] Spark figma component
- [ ] Communicate the new component