style: replace legacy typography classes with modern utilities

Convert all legacy font-size-*, font-weight-*, and line-height-* CSS utility classes to modern inline utility formats (text-[Xpx], font-{weight}, leading-[Xpx]). Also remove unused GoodsInfo component SCSS file, its associated image asset, and clean up the stale style import in GoodsInfo.vue.

src/components/RefundPopup/index.vue

@@ -2,7 +2,7 @@
   <uni-popup ref="popupRef" type="bottom" :safe-area="false" @maskClick="handleClose">
     <div class="refund-popup bg-F5F7FA ">
       <div class=" flex flex-items-center justify-between pt-12 pb-12 relative">
-        <div class="flex-full font-size-16 color-171717 line-height-24 text-center">
+        <div class="flex-full text-[16px] color-171717 leading-[24px] text-center">
           取消政策
         </div>
         <!-- 关闭按钮 -->