Interactive legend in dashboard and geostory

[allyoucanmap]

Description

We need to add the interactive legend behavior also in dashboard.
Expected implementations:

• include the layerFilter among the properties updated by the legend widget (Note: probably it's enough to pass the layerFilter here)
• fix the wrong behaviour of the TOC for map widgets where the legend is restored to default configuration (see video)

edit-style-with-filter.mp4

It is also required to add the interactive legend behavior for geostory as well

What kind of improvement you want to add? (check one with "x", remove the others)

• Minor changes to existing features

Other useful information