cubicweb #342712 refactor box system [resolved]

when we moved a left box to the context, we obtain a mess, the mentioned box will have the same large as the context (exe: try to change the layout of tagcloud_box to context)

  • drop useless htmlclass
  • refactor to get class according to context
prioritynormal
typeenhancement
done in3.10.0
load1.000
load left0.000
closed by<not specified>