Code review comment for lp://qastaging/~jbicha/activity-log-manager/add-apps-drop-spreadsheets-presentations

Yes, Zeitgeist can handle Spreadsheets separately than Presentations but I can't think of a good reason why a typical user wouldn't just want a single toggle for all document types.

I used zg's data/ontology/nfo.trig to see that Spreadsheets and Presentations are subclasses of Documents anyway (as are several other document types that we don't have toggles for).