refactor(组件): 重构链接处理并优化样式结构

- 将硬编码的详情页链接改为通过item.url统一管理
- 将评论区域的div改为可点击的a标签
- 调整图标容器的样式结构，增加定位和尺寸控制
- 修复标签过滤逻辑，避免空值导致的错误

component/item-bottom/item-bottom.txt

@@ -1,12 +1,12 @@
-<div class="comment flexacenter" v-if="item?.commentreviews && !Array.isArray(item?.commentreviews)">
+<a class="comment flexacenter" v-if="item?.commentreviews && !Array.isArray(item?.commentreviews)" :href="item.url" target="_blank">
     <img class="icon" :src="item?.commentreviews?.avatar" />
     <div class="text one-line-display">{{ item?.commentreviews?.content || "[图]" }}</div>
-</div>
+</a>
 <template v-if="item.comment_list?.length != 0">
-    <div class="comment flexacenter" style="margin-bottom: 15px" v-for="(item, index) in item.comment_list" :key="index">
+    <a class="comment flexacenter" style="margin-bottom: 15px" v-for="(item, index) in item.comment_list" :key="index" :href="item.url" target="_blank">
         <img class="icon" :src="item.avatar" />
         <div class="text one-line-display">{{ item.content || "[图]" }}</div>
-    </div>
+    </a>
 </template>
 <div class="bottom flexacenter">
     <div class="bottom-item like flexacenter" @click="likeClick()" v-if="item?.type != 'tenement'">