feat: 新增 @pureadmin/table 右键菜单示例

src/views/pure-table/high/list.tsx

@@ -1,5 +1,6 @@
 import RowDrag from "./drag/row/index.vue";
 import ColumnDrag from "./drag/column/index.vue";
+import Contextmenu from "./contextmenu/index.vue";
 
 const rendContent = (val: string) =>
   `代码位置：src/views/pure-table/high/${val}/index.vue`;
@@ -16,5 +17,11 @@ export const list = [
     content: rendContent("drag/column"),
     title: "拖拽表格（列拖拽）",
     component: ColumnDrag
+  },
+  {
+    key: "contextmenu",
+    content: rendContent("contextmenu"),
+    title: "右键菜单",
+    component: Contextmenu
   }
 ];