Need to redesign Monitoring->Dashboard->System status form.

Is required to add to the "system status" screen the following additional info(columns):

1. Name of the Zabbix node
2. Number of hosts in the host group grouped by Status of the host- how many hosts in the selected host group are available, how many hosts are Not available, how many hosts are with problems, how many host with status="Unknown" and Total number of hosts.

For more details please see sketch in the attached pdf file "proposed_design_for_system_status_screen.pdf".