feat: add maxOptionsToDisplay option to improve autocomplete performance on long lists

[JL102]

When using autocomplete with lists > 50ish in length, the creation of Svelte/DOM components in the list starts to become a performance bottleneck. It starts to become slow enough for an annoying user experience past 100. Since SMUI doesn't have any sort of virtual list component that I know of, simply limiting the number of rendered results is what I believe is a simple yet effective solution to the problem. In cases where you have a really long list but MUST render them all, then they can just keep the default value and let all the list items render.