- Switch to `@tracked` and native getters
- Remove queryParam defaults which are awkward to work with. Instead, add `resolvedBlah` getters
- Add 'no results found' text
- Use standard 'model' key instead of a custom `setupController` method
- Remove use of `route-action`
- Remove `{{action` helper
Default queryParams in ember controllers are tricky to work with, especially when combined with the new router service. Instead, we can handle defaults ourselves