refactor(PageOne): update button text for image download to improve clarity

pages/orderDetailRefactored/components/PageOne.vue

@@ -6,7 +6,7 @@
       <view class="detail-image-header">
         <text class="detail-image-title">图片资料</text>
         <view class="copy-btn" @click="handleSaveAllImages">
-          <text>一键复制</text>
+          <text>一键下载实物图到相册</text>
         </view>
       </view>
     </view>