Please fix backup id on linux cmdline client

Hello

Current output doesn’t show a valid backup id when browsing
Additionally , because there is no communication between server, i think it is possible that the same backup id is used twice.
In this case please add the server name in the browse json output.

I tried to write a tui for the client based on dialog, but the file browser is really bad
I may end up doing a simpler script which asks a set of questions

If a client has two server simultaneously it has some special logic