Refactors the encryption mechanism to use a flexible LVM-on-a-loop-device backend instead of a fixed-size file. This resolves issues with containers running out of space.
- Implements auto-resizing of the container when a backup fails due to lack of space.
- Implements transparent inspection of encrypted containers, allowing the UI to display their contents (full/incremental backups) just like unencrypted ones.
- Fixes deletion of encrypted backups by ensuring the container is unlocked before deletion.
- Fixes a bug where deleting unencrypted user backups incorrectly required root privileges.
- Fixes a UI freeze caused by calling a password dialog from a non-UI thread during deletion.
- Simplifies the UI by removing the now-obsolete "Show Encrypted Backups" button.
- Changes the default directory for encrypted user backups to `user_encrypt`.
Désiré Werner Menrath
452a56b813