General:
- New top menu item Recent is added
- Library caches are cleared when switching server
Search:
- Is done using server API
- Latest search is cache to prevent need to make new request when returning from browsable item.
- Results are grouped by book, series, author and split by library
- Only searches libraries with audio content
Library personalized shelves:
- Recent books, series, authors, podcasts and episodes shelves are listed under Recent top menu
- Discovery shelves can be found under library many from corresponding library
