Problem description: XSS is executable in geomap widget (when clicking on a certain host in widget) by placing script text in the visible name of the host
Example:

Steps to reproduce:

1. Create a host with the following string defined in parameter "Visible name" (don't forget to specify coordinates in Inventory tab):

   <img src="x" onerror="alert('Im on a map!');"/>
   

2. Open configuration of any Dashboard and and a Geomap widget:
   Specify the previously created host in parameter "Host
3. Save widget and the dashboard
4. Open dashboard in view mode and click on the host in the geomap widget
   Result: an alert with text "I'm on a map!" is displayed.
   Expected: JS defined in host Visible name parameter should not be executed if this host is used in a geomap widget