Long tags extending past table cell boundaries in PDF exports

[glutanimate]

It seems like, with the current stylesheet, the add-on has trouble breaking up longer coherent lines properly. This is especially the case for the tags field where long hierarchical tags often reside.

The issue is likely to be specific to PDF exports as word wrapping should work properly in the browser. As we are likely to drop the current PDF backend in the future it might make sense to hold off on investigating this too intensively until we have the new backend in place.

(thanks to Reto for the report on this!)