Call assay app update_row() already during rendering

[mikkonie]

This would speed up loading of the sample sheet view for large sheets, as we don't have to iterate (or even render) the tables multiple times.

Can't think of a reason not to do this, at least off the top of my head.

This information is only relevant for the UI, so this could be done together with #694. Will look into it for SODAR v0.10.

[mikkonie]

Looking at this ticket 10 months later, it seems this would actually involve either moving the entire get_irods_content() function or parts of it to rendering. The only real advantage of this is not having to iterate over table rows twice and I'm not sure if it's really a huge benefit.

I'll look into this more closely when I next do more general refactoring of the rendering but for now, I'm moving this to the backlog.