fix test error

types/zui/tsconfig.json

@@ -2,7 +2,8 @@
     "compilerOptions": {
         "module": "commonjs",
         "lib": [
-            "es6"
+            "es6",
+            "dom"
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,

types/zui/zui-tests.ts

@@ -213,7 +213,6 @@ $('#multiDroppableContainer').droppable({
         $('#multiDroppableContainer .droppable-target').removeClass('panel-warning').removeClass('panel-success').find('.panel-heading').text('拖动到这里吗？');
     },
     drop: (event: DroppableEvent) => {
-
         $('#multiDroppableContainer .droppable-target').removeClass('panel-success').removeClass('panel-warning');
         if (event.target && event.element) {
             const elementId = event.element.find('.btn-droppable-id').text();