Ref T5474. It wasn't possible to automatically do something when a workboard card had been moved to another column.
- Create a Herald project column field and a respective typeahead datasource.
- Make project column handles unambiguous by showing the project name as prefix.
- Make project column handles even more distinguishable by using the project color.
- Extend the project column query for datasource queries.
- Add a "moved to" condition to the Herald adapter.