`filter_spec` for numeric variables could be a range selection?

[nikolas-burkoff]

From insightsengineering/teal#436 (comment)

Not sure how useful current behaviour is:

If this is changed then we need to handle this case carefully:

[denisovan31415]

If we are to implement this, then we would be under taking the step of making filter_spec having the capabilities of filter_panel?

That might not be a rabbit hole of redundancy.

[pawelru]

Yes we are aware of it and it was like that since the very beginning. It seems that the assumption of always a choices type of data is too strong. I like the way filter-panel handles it via dispatch on types of data. I wanted to basically re-use that functionality into data-extract-spec but it's a big task.