fix: 修复搜索菜单功能的弹框遮罩未覆盖左侧菜单的问题

src/layout/components/search/components/SearchModal.vue

@@ -145,6 +145,7 @@ onKeyStroke("ArrowDown", handleDown);
     :style="{
       borderRadius: '6px'
     }"
+    append-to-body
     @opened="inputRef.focus()"
     @closed="inputRef.blur()"
   >