`groupBy` reports should use human-readable label

[TheSlimvReal]

In the ReportRowComponent the value description for missing values is without gender or not active. However the gender and active are the property IDs instead of the actual label of this property. This should be changed to the human readable label.

[TheSlimvReal]

See https://github.com/Aam-Digital/ndb-core/blob/master/src/app/features/reporting/report-row.ts#L27

[sleidig]

Also (and a bit more advanced), when grouping by a referenced entityId (e.g. the school a child is linked to), groupBy needs access to a sub-property of the grouped property to give a sensible displaying.

@TheSlimvReal , not possible yet, is it?

[TheSlimvReal]

@sleidig no, this is also not possible with the JSON queries.

[sleidig]

Closing this, as we are deprecating frontend-based reports in favor of the SQL-based Reporting API.