Make drug selection search less confusing

[tamslo]

Currently, duplicate entries are shown to enable to show active medications on top but avoid that items are sorted to the top and not visible anymore when selected in the scrolled list.

A better behavior would be that if filtered drugs are less than all drugs, the filtered list shows no active medications. On search term change, lists should always scroll to top (also useful for the medication page).

Potential implementation: use scroll controller and pass to search bar, jump to start on change; however, this is not working properly (probably because the list size changes).