feat: 优化应用商店界面布局和交互体验

refactor(HomeView): 调整网格布局和卡片样式，增加欢迎页面
refactor(AppDetailModal): 重构应用详情弹窗布局，增加元数据展示和返回按钮
fix(spark-store): 添加dpkg命令检查逻辑
style: 统一调整部分间距和颜色样式

src/App.vue

@@ -51,6 +51,7 @@
             :lists="homeLists"
             :loading="homeLoading"
             :error="homeError"
+            :store-filter="storeFilter"
             @open-detail="openDetail"
           />
         </template>
@@ -378,6 +379,7 @@ const toggleTheme = () => {
 const selectCategory = (category: string) => {
   activeCategory.value = category;
   isSidebarOpen.value = false;
+  window.scrollTo({ top: 0, behavior: "smooth" });
   if (
     category === "home" &&
     homeLinks.value.length === 0 &&