Searching for a word in the filter should highlight said word in the annotations
Searching for a word in the annotations and it not being highlighted was a little confusing specially on small screens because since the filter component sets a semi-transparent white background behind itself, users can't really tell if the annotations got filtered or not, specially because even when 'leaving' the filter view, the annotation that is left (the one that includes the searched word) doesn't appear to include said word, you first have to read it to see if it matches. And this supposing that there is only one annotation that matches the search word, in case you have more than one it's another story.
It would be much easier if the 'suchbegriff' users enter in the filter gets highlighted on search or after search in the annotations that include it, so that it's easy to find said annotation.