Add support for pull down to refresh

[GianniCarlo]

Purpose

• Add pull down to refresh to:
  • Scan local files in case there's something pending import
  • Fetch remote data

Related tasks

#1074

Approach

• Add refresh control to the table view
• Rework fetching the data and the last played book update into a separate service
• Use new service to be reused between the coordinators and the item list view model

Things to be aware of / Things to focus on

• There was a bug introduced by setting the flag withIntermediateDirectories to true when creating a folder on disk, this would make the FileManager not throw an error if there was already a folder with the exact name