bug when two instances share the same $gen_name

[0xtavian]

there is a bug when two cloud instances have the same $gen_name, axiom generates a malformed ssh config file which prevents using any instance. Logic should be added that regenerates the name if a collision occurs.

tmp workaround:
option 1:
log into cloud provider web dashboard (or via the CLI) and manually delete instances with duplicate hostnames.
option 2:
edit the local ssh config axiom uses (~/.axiom/.sshconfig) to remove the duplicate entries, then run axiom-ssh --just-generate cache to permanently lock/prevent axiom from regenerating the ssh config. ( to revert run axiom-ssh --just-generate or axiom-ssh --just-generate public