Add support for end-to-end encrypted files in File Provider module

[claucambra]

How to use GitHub

• Please use the 👍 reaction to show that you want to have the same feature implemented.
• Please don't comment if you have no relevant information to add. It's just extra noise for everyone subscribed to this issue.
• Subscribe to receive notifications on status change and new comments.

Feature description

Currently, the File Provider VFS implementation on macOS just ignores end-to-end encrypted files. We should support these fully in the future