we can now show 'none', 'encprypted', 'signed' or 'mixed' for
the crypt mode
also adds a different icon for signed files, and adds a hint that
signatures cannot be verified on the server
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
enables to be able to download whole files from the backup (e.g.
the decoded didx/fidx/blobs) for unencrypted backups
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>