Simplification of Latent heat interactives
Workaround issues with FastClick and jQuery Context Menu

[#63386470]

In a really ugly way... Unfortunately FastClick breaks jQeury Context
Menu plugin. Even if context menu container has "needsclick" class,
what in theory should disable FastClick, it won't help.

The only solution is to put context menu completely outside container
that has FastClick attached. To do so, I had to create a new container
inside interactives container and use it e.g. in semantic layout and
other places.
fix missing KE shading legend/symbol

[#63572880]