Deactivate "All" view in preferences

The tab "All" of the preferences page is not very useful (because of it's length), so I want to remove it and use the first tab (in this case "General") as default.

added part::frontend type::feature labels

created merge request !420 (merged) to address this issue

mentioned in merge request !420 (merged)

closed with merge request !420 (merged)

mentioned in commit c7621afe