Fixed #3802 - Improve folder structure for nuxt configurations

components/lib/columngroup/ColumnGroup.d.ts

@@ -0,0 +1,49 @@
+/**
+ * Columns can be grouped at header and footer sections by defining a ColumnGroup component.
+ * It is a helper component for DataTable.
+ *
+ * [Live Demo](https://www.primevue.org/datatable/)
+ * @module columngroup
+ */
+import { ClassComponent, GlobalComponentConstructor } from '../ts-helpers';
+
+/**
+ * Defines valid properties in ColumnGroup component.
+ */
+export interface ColumnGroupProps {
+    /**
+     * Type of column group
+     */
+    type?: 'header' | 'footer' | undefined;
+}
+
+/**
+ * Defines valid slots in ColumnGroup component.
+ */
+export interface ColumnGroupSlots {}
+
+/**
+ * Defines valid emits in ColumnGroup component.
+ */
+export interface ColumnGroupEmits {}
+
+/**
+ * **PrimeVue - ColumnGroup**
+ *
+ * _It is a helper component for DataTable._
+ *
+ * [Live Demo](https://www.primevue.org/datatable/)
+ * --- ---
+ * ![PrimeVue](https://primefaces.org/cdn/primevue/images/logo-100.png)
+ *
+ * @group Component
+ */
+declare class ColumnGroup extends ClassComponent<ColumnGroupProps, ColumnGroupSlots, ColumnGroupEmits> {}
+
+declare module '@vue/runtime-core' {
+    interface GlobalComponents {
+        ColumnGroup: GlobalComponentConstructor<ColumnGroup>;
+    }
+}
+
+export default ColumnGroup;