* Narrative web: Ancestor's tree display looks weird
Solves the following:
- Person boxes overlap
- Some person boxes partially visible or hidden
Fixes#11382
* Narrative web: some cleanup in ancestortree.css
* Narrative web : ancestor tree and long names.
* Adapt ancestor tree css file for all themes
This enhancement adds a new 'compact' field to the Narrated
Web Report. A compact tree is one that is not a simple binary
layout but uses the algorithm of Buchheim/Walker to create a
layout that is sensible but also compact.
Creating a compact layout is slower than a simple binary
tree but the results are significantly improved and do not leave
large areas of whitespace where there are no nodes to be shown.
