Restore UI shall provide an edit box to paste the private RSA key to or a file browser to upload the private key file from the local machine to the machine the duplicacy is running on. Ideally there should also be an edit box to provide the passphrase for the encrypted private key.
Currently the restore workflow is cumbersome and not very friendly: now to restore user needs to
- make private key available to target system where duplicacy_web is running.
- Know the CLI argument format to specify path to the file.
- Deal with the encrypted private key (provide passphrase and/or decrypt the key).