Filterable widgets

[romancitodev]

Hi! I'm using the select widget with the filter_mode but I can't insert any space.

    let commit = select("Select a word")
        .items(&mapped_commit)
        .filter_mode()
        .interact()?;

Anyways, I looked around how the select works and I found something interesting about the FilteredView<T>.

the filter explicitly ignores the space

Then, I tried to replicate the Select and remove that behaviour but the PromptInteraction trait but all it's private (it's marked as pub(crate)), it's quite annoying because everyone that wants to extends their own components, they just simply can't.

[fadeevab]

@romancitodev Thanks for reporting this. Would you need a public PromptInteraction and some of its dependencies? It would be great if you tried the usability of making internal traits public locally, and even greater for a PR :)