fix(calendar(css)): fix padding of sort handle of calendars

UI/WebServerResources/js/Scheduler/sgCalendarListItem.directive.js

@@ -37,10 +37,9 @@
         '         sg-enter="$ctrl.saveFolder($event)"',
         '         sg-escape="$ctrl.revertEditing()" />',
         '</md-input-container>',
-        '<md-button class="md-secondary md-icon-button" ',
-        '           as-sortable-item-handle="as-sortable-item-handle">',
-        '  <md-icon md-colors="::{color: \'accent-400\'}">drag_handle</md-icon>',
-        '</md-button>',
+        '<md-icon class="md-menu md-secondary-container"',
+        '           as-sortable-item-handle="as-sortable-item-handle"',
+        '           md-colors="::{color: \'accent-400\'}">drag_handle</md-icon>',
         '<md-icon class="md-menu md-secondary-container sg-list-sortable-hide"',
         '         ng-click="$ctrl.showMenu($event)"',
         '         aria-label="' + l("Options") + '">more_vert</md-icon>'