[0.85] improve display


git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21075 35612d4c-9d10-0410-837c-bf9dd1be60d7
[0.85] do not display empty if search see #4363


git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21076 35612d4c-9d10-0410-837c-bf9dd1be60d7