..F....... [ZBX-7535] Changed from "Link' to "Url" in error messages for map link urls.
Strings changed: 
    'Link should have both "name" and "url" fields for map "%s".' to 'Url should have both "name" and "url" fields for map "%s".'
    'Link name should be unique for map "%s".' to 'Url name should be unique for map "%s".'