fix(接口测试): 修复模块树编辑时不能用鼠标选定文字的缺陷

--bug=1014630 --user=王孝刚 【接口测试】接口定义和场景，左侧模块树编辑时不能用鼠标选定一段文字
https://www.tapd.cn/55049933/s/1195149

frontend/src/business/components/track/common/NodeTree.vue

@@ -24,7 +24,7 @@
 
         <span v-if="data.isEdit" @click.stop>
           <el-input @blur.stop="save(node, data)" @keyup.enter.native.stop="$event.target.blur()" v-model="data.name"
-                    class="name-input" size="mini" ref="nameInput"/>
+                    class="name-input" size="mini" ref="nameInput" :draggable="true"/>
         </span>
 
         <span v-if="!data.isEdit" class="node-icon">