ui: Dashboard/TaskSummary: show task overlay when clicking on a count

when clicking on a count in the summary, a small task overlay now pops
up that shows those tasks. this way, the user has an easy way
of seeing which tasks failed exactly

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

www/Dashboard.js

@@ -166,7 +166,7 @@ Ext.define('PBS.Dashboard', {
 		}
 	    });
 
-	    me.lookup('tasksummary').updateTasks(data);
+	    me.lookup('tasksummary').updateTasks(data, viewModel.get('sinceEpoch'));
 	},
 
 	init: function(view) {