update: 图片预览参数

src/views/activity/component/NewActivity.vue

@@ -42,7 +42,8 @@
           <vue-gic-upload-image :project-name="projectName" :action-url="actionUrl" :limit-w="80"
             :limit-h="80" :image-list="imageList" :max-image-length="maxlength" :accept="accept"
             :before-upload="beforeUpload" @uploadOnSuccess="uploadOnSuccess"
-            @deleteImage="deleteImage">
+            @deleteImage="deleteImage"
+            preview-append-to-body>
           </vue-gic-upload-image>
           <p class="image-tip">图片尺寸80*80px，格式 jpg/jpeg/png，大小 100KB 以内。</p>
         </el-form-item>