Add File Caching Options to Improve Performance

[tomfun]

Description:
The app is currently difficult to use for streaming media files, such as music, due to significant lag when accessing files through WebDAV. Maybe the lack of a caching system results in poor performance.

Feature Request:
Please consider adding file caching options to the app to improve performance when accessing media or large files. Some suggested caching features include:

• Max cache size: Set a limit on the amount of storage used for caching files locally.
• Cache chunk size: Allow configuration of the size of data chunks to cache during streaming or file access.
• Cache expiration: A way to set how long cached files remain before being deleted.
• Preload options: Preload the next portion of a file while the current part is playing or being accessed.

This would make the app much more usable for use cases like streaming music or video from WebDAV storage.

Why it's important:
The current performance makes the app difficult to use for real-time access to large files. Implementing a caching system would help avoid frequent buffering and improve overall user experience. This feature would make the app feel more polished and worthy of a paid version.

Additional Notes:

• A toggle to disable caching for users who prefer direct access would also be helpful.
• Cache management (clear cache option) could be added to the settings menu.
• Directory based configuration