fix: prevent scroll upon clicking selection from suggestion list

[imjohnbo]

Summary

This pull request prevents the browser from scrolling to the bottom of a textarea when you click a selection from the suggestion list.

Here's an example based on ./examples/index.html:

Before	After

Thanks for taking a look! ✨

[dgreif]

This makes sense to me! I usually use the keyboard for selecting options, so I hadn't realized how jarring this experience can be with the mouse! Thanks for fixing ✨

[WillaHelenA]

#27 #24