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

css/index.css

@@ -281,10 +281,17 @@
 #appIndex .header-content-box .header-content-right .post-entrance .entrance-bottom .item:hover {
   background-color: #e7e7e7;
 }
-#appIndex .header-content-box .header-content-right .post-entrance .entrance-bottom .item .icon {
+#appIndex .header-content-box .header-content-right .post-entrance .entrance-bottom .item .icon-box {
+  position: relative;
   width: 16px;
   height: 16px;
-  margin-right: 6px;
+  margin-right: 8px;
+}
+#appIndex .header-content-box .header-content-right .post-entrance .entrance-bottom .item .icon-box .icon {
+  position: absolute;
+  width: 38px;
+  top: -8px;
+  left: -6px;
 }
 #appIndex .header-content-box .header-content-right .adv {
   width: 240px;

css/index.less

@@ -334,10 +334,18 @@
                             background-color: #e7e7e7;
                         }
 
-                        .icon {
+                        .icon-box {
+                            position: relative;
                             width: 16px;
                             height: 16px;
-                            margin-right: 6px;
+                            margin-right: 8px;
+
+                            .icon {
+                                position: absolute;
+                                width: 38px;
+                                top: -8px;
+                                left: -6px;
+                            }
                         }
                     }
                 }