multi-input component is not optimized.

[SergeyPunko]

https://github.com/SAP/fundamental-ngx/blob/main/libs/core/multi-input/multi-input.component.html#L70

This implementation is not optimized, considering that there may be a large list of selected items. In our application, this component allows selecting a large number of items. As soon as we try to render such a component, rendering takes a significant amount of time because the component renders each item individually. My suggestion is to implement virtual scrolling for this element. This way, we can eliminate performance problems.

[droshev]

@SergeyPunko Can you share more context of your use-case(s)? What is a typical scenario? Can/n't the user enter free texts or not? what is the avarage list if tokens added/selected? What is the maximun, etc...
Thanks