Shortcut buttons for service control and logs on RADVD configuration
Moving from internal Redmine since this affects CE and Plus and isn't hardware-dependent.
Original Description from NG 6255:
The services_router_advertisements.php doesn't have the red icons in the top right corner for restarting the service, viewing the logs, etc.. Just the red question mark.
PR is already merged and picked back to 21.05 branch.