feat: 添加BI组件并优化多个页面样式和功能

refactor: 重构slideshow-box组件，移除帖子标签

fix: 修复item-bottom组件中QR码加载状态显示问题

style: 调整多个页面的CSS样式，包括字体大小和间距

perf: 优化save.js文件同步逻辑，支持更多模板格式

docs: 更新组件文档和注释

chore: 添加bi组件相关文件并配置监听同步

test: 更新测试用例以适应组件变更

css/index.css

@@ -73,7 +73,7 @@
   font-family: "PingFangSC-Regular", "PingFang SC", sans-serif;
   font-weight: 400;
   font-style: normal;
-  font-size: 16px;
+  font-size: 14px;
   color: #7f7f7f;
 }
 #appIndex .header-content-box .header-content-left .topic-and-selectives .topic-box .topic-head .people {
@@ -469,6 +469,9 @@
 #appIndex .admission .admission-list .admission-item:not(:nth-last-child(-n + 4)) {
   margin-bottom: 14px;
 }
+#appIndex .matter {
+  align-items: flex-start;
+}
 #appIndex .matter .matter-content {
   margin-right: 12px;
 }
@@ -520,14 +523,19 @@
 #appIndex .matter .matter-content .item-box {
   margin-bottom: 12px;
 }
-#appIndex .matter .sidebar .adv {
+#appIndex .matter .sidebar.fixed {
+  position: fixed;
+  right: calc((100% - 1200px) / 2);
+  bottom: 10px;
+}
+#appIndex .matter .sidebar .ad-item {
   display: block;
   width: 291px;
   height: 220px;
   margin-bottom: 12px;
   cursor: pointer;
 }
-#appIndex .matter .sidebar .adv .adv-icon {
+#appIndex .matter .sidebar .ad-item img {
   width: 291px;
   height: 220px;
   border-radius: 10px;