feat: 优化首页模板，移除不必要的条件渲染，调整样式以适应全屏

src/pages/index-new.page.vue

@@ -7,11 +7,7 @@ import {
 </script>
 
 <template>
-  <div bg-red v-if="false">
-    <div class="bg-blue h-full">A</div>
-  </div>
-
-  <div class="h-screen w-screen p-4" v-else>
+  <div class="p-4" style="height: 100dvh; width: 100dvw">
     <PatternBackground
       :animate="true"
       :direction="PATTERN_BACKGROUND_DIRECTION.TopRight"