More small search improvements

We’ve made a few smaller improvements to search and list views, so it’s easier to fine-tune results and work through bigger lists.

Now you can:

• see saved search result counts in more places
• edit search pills instead of removing them and starting again
• search for customers by broadcast and delivery status
• scroll through long lists more smoothly across the app

Nothing dramatic, but all handy if you spend a lot of time searching.