style(SidebarMenu): 调整侧边栏菜单的内边距和移除多余样式

移除搜索框的全局样式和标签栏底部内边距，优化头部容器的内边距

Cunkebao/src/pages/pc/ckbox/components/SidebarMenu/SidebarMenu.module.scss

@@ -5,7 +5,7 @@
   background: #fff;
 
   .headerContainer {
-    padding: 16px;
+    padding: 16px 16px 0px 16px;
     background: #fff;
     border-bottom: 1px solid #f0f0f0;
 
@@ -13,25 +13,12 @@
       margin-bottom: 16px;
       padding: 0;
       background: #fff;
-
-      :global(.ant-input) {
-        border-radius: 20px;
-        background: #f5f5f5;
-        border: none;
-
-        &:focus {
-          background: #fff;
-          border: 1px solid #1890ff;
-          box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
-        }
-      }
     }
 
     .tabsContainer {
       display: flex;
       justify-content: space-around;
       border-bottom: 1px solid #f0f0f0;
-      padding: 0 0 8px;
 
       .tabItem {
         padding: 8px 0;