Provide a visual indication on the number of matches within a note's search results
One of the UX issues with the current search implementation is that when you have multiple search query matches within a note, you don't have a clear indication that it is the case, and you don't know how many matches either. This makes it hard to know your current position within the matches.
Some other apps, like Epiphany, solved this by showing the current match number/total on the right within the SearchEntry widget, like this:
I think it would make sense to do the same here.