Bump superdesk-planning from 9fdacc2 to 4d19a6f in /client (#275)

Bumps [superdesk-planning](https://github.com/superdesk/superdesk-planning) from `9fdacc2` to `4d19a6f`.
- [Release notes](https://github.com/superdesk/superdesk-planning/releases)
- [Commits](superdesk/superdesk-planning@9fdacc2...4d19a6f)

---
updated-dependencies:
- dependency-name: superdesk-planning
  dependency-type: direct:production
...

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