[FEATURE REQUEST] Add "All books" section

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Is your feature request related to a problem? Please describe.
It is inconvenient to go through the sections to find a book
It is inconvenient to search for the audiobook that you wanted to listen to every time

Describe the solution you'd like
Add "All books" section
The ability to create a playlist from audiobooks

Describe alternatives you've considered
n/a

Additional context