feat: improve scrolling effect of left-side on website configuration page (#11423)

Refs #11412

Author: zhengkunwang223

frontend/src/views/website/website/config/basic/index.vue

@@ -135,6 +135,11 @@ const handleScroll = (event: WheelEvent) => {
     const tabContainer = tabsRef.value.$el.querySelector('.el-tabs__nav-scroll');
     if (!tabContainer) return;
 
+    const currentScrollTop = tabContainer.scrollTop;
+    if (currentScrollTop == 0) {
+        return;
+    }
+
     const target = event.target as HTMLElement;
     if (!target.classList.contains('el-tabs__item')) {
         return;