refactor(styles): replace custom scroll classes with overflow utils

Remove the deprecated scroll.scss stylesheet and its import from the main SCSS index file. Replace all usages of the custom .scroll-y and .scroll-x classes across Vue templates with the corresponding overflow utility classes. Fix a malformed scroll-view tag in the goods album page template.

src/pages/Discovery/components/ExploreCards/index.vue

@@ -1,6 +1,6 @@
 <template>
   <view class="explore-cards">
-    <scroll-view class="explore-scroll" scroll-x show-scrollbar="false">
+    <scroll-view class="explore-scroll" overflow-x-autoshow-scrollbar="false">
       <view class="explore-track">
         <view v-for="(item, index) in normalizedList" :key="getItemKey(item, index)" class="explore-card"
           :class="`is-${item.tone}`" hover-class="is-pressed" hover-stay-time="80"

src/pages/Discovery/components/HeritageQuickPrompts/index.vue

@@ -1,5 +1,5 @@
 <template>
-  <scroll-view class="prompt-strip" scroll-x show-scrollbar="false">
+  <scroll-view class="prompt-strip" overflow-x-autoshow-scrollbar="false">
     <view class="prompt-track">
       <view v-for="(item, index) in normalizedList" :key="getItemKey(item, index)" class="prompt-card"
         hover-class="is-pressed" hover-stay-time="80" @tap="handleTap(item.raw, index)">

src/pages/Discovery/components/QuickQuestions/index.vue

@@ -1,6 +1,6 @@
 <template>
   <view class="container pl-[12px]">
-    <view class="container-scroll text-[0px] scroll-x whitespace-nowrap">
+    <view class="container-scroll text-[0px] overflow-x-autowhitespace-nowrap">
 
       <view class="card-item bg-white inline-block rounded-[20px] mr-[10px]" v-for="(item, index) in list" :key="index"
         @click="sendReply(item)">