Make Scrolling More Obvious (Customizable maybe?)

[Swivelgames]

Is your feature request related to a problem? Please describe.
Right now, it's not immediately obvious that there are additional items in a scrollable select. The addition of the down arrow looks good, but I fear that it's a bit too subtle.

Describe the solution you'd like
It would be great if there was an option to replace the last visible item in the list with an ellipsis ("...") instead.

Additionally, being able to configure the text there would be great, like setting it to "More..." or something else depending on their needs.

---

^{Completely unrelated side note... Setting the Github repo's "website" to https://docs.rs/inquire would be great to make accessing the docs from the repo easier 🎉}

[mikaelmello]

That's a good idea, I'm a bit hesitant in making the new style the global default, instantly applying it to anyone who updates, so I'm going to add that as a render config option instead.

---

^{Good idea too, thanks! Added it}