Renamed admin interface files and URLs to reflect the evolution from
'SFTP servers' to 'File transports' functionality:
- admin/sftp_servers.pl -> admin/file_transports.pl
- sftp_servers.tt -> file_transports.tt
- Updated all URL references in templates and admin menu
- Updated body id from admin_sftp_servers to admin_file_transports
The functionality is now future-proof for the addition of new file
transports, so the naming should reflect his broader scope.
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>