Visual Style Editor implement autocomplete for the attributes input of the filter popup

[allyoucanmap]

Currently the attribute field in the filter popup does not provide an autocomplete for the possible available values. We should provide an autocomplete similar to the one in the query builder.

The workflow in the query builder uses epics and the global redux state, probably in this case is better a solution included directly inside the component using local state.
We should investigate if it's better to adopt a different approach in this case (eg: react-select with load options prop).

Filter popup without autocomplete: