smb4kclient_p store the fully qualified DNS-SD name on hosts

Raresh Rusrequested to merge
work/nmariusp/computer_node_pingable into master 
Previously, on Kubuntu 26.04 default installation,
smb4k did not list the shares of an SMB server computer.
On Kubuntu 26.04, Samba server /etc/samba/smb.conf says:
"[global]
        disable netbios = Yes"
So NETBIOS style discovery and name system is not running by default.

"n@smbclientcomputer:~$ ping ASERVER
ping: ASERVER: Temporary failure in name resolution
n@smbclientcomputer:~$ ping ASERVER.local
PING ASERVER.local (192.168.122.202) 56(84) bytes of data.
64 bytes from 192.168.122.202: icmp_seq=1 ttl=64 time=0.204 ms"

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