Bug修复与阅读体验增加 (#725)

- 修复了“每日精品限免 / 促销应用”价格显示错误的Bug
- 为"即刻主题精选"中的图片间添加间隔，以提升阅读体验

routes/appstore/xianmian.js

@@ -14,7 +14,7 @@ module.exports = async (ctx) => {
             description: `
           <img referrerpolicy="no-referrer" src="${item.app.icon.image}"/>
           <br/>
-          原价：${item.discount_info[0].discounted_price} -> 现售：${item.discount_info[0].original_price}
+          原价：${item.discount_info[0].original_price} -> 现售：${item.discount_info[0].discounted_price}
           <br/>
           平台：${item.app.download_link[0].device}
           <br/>

routes/jike/topic.js

@@ -110,7 +110,7 @@ module.exports = async (ctx) => {
             if (item.pictures) {
                 item.pictures.forEach(
                     (pic) =>
-                        (description += `<picture><source srcset="${pic.picUrl.split('/thumbnail/')[0]}/strip/format/webp" type="image/webp"><source srcset="${pic.picUrl.split('?imageMogr2/')[0]}" type="image/jpeg"><img src="${
+                        (description += `<br/><picture><source srcset="${pic.picUrl.split('/thumbnail/')[0]}/strip/format/webp" type="image/webp"><source srcset="${pic.picUrl.split('?imageMogr2/')[0]}" type="image/jpeg"><img src="${
                             pic.picUrl.split('?imageMogr2/')[0]
                         }"></picture>`)
                 );