fix：修复dialog、transfer事件变量[amis-saas-7150]

Change-Id: I8506108ae46c539c352ac115a7361e08d88c9250

packages/amis-editor/src/plugin/Dialog.tsx

@@ -56,12 +56,34 @@ export class DialogPlugin extends BasePlugin {
     {
       eventName: 'confirm',
       eventLabel: '确认',
-      description: '点击弹窗确认按钮时触发'
+      description: '点击弹窗确认按钮时触发',
+      dataSchema: [
+        {
+          type: 'object',
+          properties: {
+            'event.data': {
+              type: 'object',
+              title: '弹窗数据'
+            }
+          }
+        }
+      ]
     },
     {
       eventName: 'cancel',
       eventLabel: '取消',
-      description: '点击弹窗取消按钮时触发'
+      description: '点击弹窗取消按钮时触发',
+      dataSchema: [
+        {
+          type: 'object',
+          properties: {
+            'event.data': {
+              type: 'object',
+              title: '弹窗数据'
+            }
+          }
+        }
+      ]
     }
   ];
 

packages/amis-editor/src/plugin/Tabs.tsx

@@ -74,7 +74,7 @@ export class TabsPlugin extends BasePlugin {
         {
           type: 'object',
           properties: {
-            value: {
+            "event.data.value": {
               type: 'string',
               title: '选项卡索引'
             }