Highlight main menu item if no query has been selected

app/assets/javascripts/angular/layout/query-menu-item-directive.js

@@ -8,7 +8,7 @@ angular.module('openproject.layout')
     scope: { queryId: '@' },
     link: function(scope, element, attrs) {
       scope.$on('$stateChangeSuccess', function() {
-        element.toggleClass('selected', scope.queryId === $stateParams.query_id);
+        element.toggleClass('selected', (scope.queryId || null) === $stateParams.query_id);
       });
     }
   };

lib/redmine.rb

@@ -300,7 +300,8 @@ Redmine::MenuManager.map :project_menu do |menu|
                             caption: :label_work_package_plural,
                             html: {
                               class: "icon2 icon-copy",
-                              "data-ui-route" => ''
+                              "data-ui-route" => '',
+                              query_menu_item: 'query_menu_item'
                             }
 
   menu.push :new_work_package, { :controller => '/work_packages', :action => 'new'},