Unable to manage tiles citizens are working

When attempting to manage the tiles citizens are working, the UI does not populate the expected buttons to select tiles to work.

**To Reproduce**
Steps to reproduce the behavior:
1. Select a city
3. No buttons appear to change the tiles citizens are working

**Expected behavior**
Buttons should appear that allow me to change the tiles citizens are working.

**Screenshots**

- OS: Ubuntu 16.04
- Version 1.0.0.220
- Expansion Rise and Fall
- Other mods [e.g. YnAMP]

**Additional context**
I'm not sure if this mod is intended to be backwards compatible and I know that the current version is compatible with 1.0.0.226 so feel free to close if the issue is just that the newest patch is not yet available for linux.

Reproduce the issue by selecting a city in Civilization VI with CQUI version 1.0.0.220 and check whether the citizen tile-management buttons appear. Compare the behavior with the stated compatible version and mod context; done means the expected buttons appear and allow tile selection.

Written by the indexing model from the issue text.