Release managment

[mimarz]

Notes:

• https://apolloelements.dev/blog/lerna-to-changesets/

### Tasks
- [ ] Add a draft title or issue reference here
- [ ] https://github.com/digdir/designsystem/issues/172
- [ ] https://github.com/digdir/designsystem/issues/167
- [ ] https://github.com/digdir/designsystem/issues/175
- [ ] https://github.com/digdir/designsystem/issues/459
- [ ] Separate dev / production storybook
- [ ] https://github.com/digdir/designsystem/issues/842
- [ ] https://github.com/digdir/designsystemet/issues/1885

[Barsnes]

Found this nice guide for how to migrate: https://apolloelements.dev/blog/lerna-to-changesets/