cubicweb #344691 user can interact with levels of view [rejected]

I would have the possibility to choice the amount of information (granularity) displayed on the current view. It could improve the user experience and simplify the navigation with a kind of "slider" widget.

P.S. Based on a discussion between adim, nico and auc on on #webapp

done in<not specified>
load left0.000
closed by<not specified>