修正用户分配角色属性错误

src/views/system/user/authRole.vue

@@ -9,7 +9,7 @@
                </el-form-item>
             </el-col>
             <el-col :span="8" :offset="2">
-               <el-form-item label="登录账号" prop="phonenumber">
+               <el-form-item label="登录账号" prop="userName">
                   <el-input v-model="form.userName" disabled />
                </el-form-item>
             </el-col>