Bump superdesk-planning from 4914e29 to d7abac0 in /client (#353)

Bumps [superdesk-planning](https://github.com/superdesk/superdesk-planning) from `4914e29` to `d7abac0`.
- [Release notes](https://github.com/superdesk/superdesk-planning/releases)
- [Commits](superdesk/superdesk-planning@4914e29...d7abac0)

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

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