fixes#193fixes#192fixes#107
- [x] Implement the new login process
- [x] Tested
- [x] Update the authenticator setup process
- [x] Tested
- [x] Update the authenticator remove process
- [x] Tested
- [x] Manifest format migrator
- [x] Tested
- [x] Make it possible to import SDA accounts
- [x] Make sure confirmations still work
- [x] Fetching
- [x] Responding
- [x] Make it so that the login process doesn't prompt for which method
to use
- [x] Make it so that device confirmation and email confirmation auth
session guards work
- fix tui::pause only accept enter to continue so it's less confusing
- replace unwrap with flush
- replace some prints with eprints
- make tui::prompt flush stdout and stderr
fixes#178