N°8641 - Dashboard editor front-end first commit for Form SDK integration.

* No dashlet edition
* Dashboard are not persisted
* Unable to load a dashboard from an endpoint (refresh)
* Grid library need proper npm integration

node_modules/gridstack/dist/angular/lib/gridstack-item.component.d.ts

@@ -0,0 +1,79 @@
+/**
+ * gridstack-item.component.ts 12.3.3
+ * Copyright (c) 2022-2024 Alain Dumesny - see GridStack root license
+ */
+import { ElementRef, ViewContainerRef, OnDestroy, ComponentRef } from '@angular/core';
+import { GridItemHTMLElement, GridStackNode } from 'gridstack';
+import { BaseWidget } from './base-widget';
+import * as i0 from "@angular/core";
+/**
+ * Extended HTMLElement interface for grid items.
+ * Stores a back-reference to the Angular component for integration.
+ */
+export interface GridItemCompHTMLElement extends GridItemHTMLElement {
+    /** Back-reference to the Angular GridStackItem component */
+    _gridItemComp?: GridstackItemComponent;
+}
+/**
+ * Angular component wrapper for individual GridStack items.
+ *
+ * This component represents a single grid item and handles:
+ * - Dynamic content creation and management
+ * - Integration with parent GridStack component
+ * - Component lifecycle and cleanup
+ * - Widget options and configuration
+ *
+ * Use in combination with GridstackComponent for the parent grid.
+ *
+ * @example
+ * ```html
+ * <gridstack>
+ *   <gridstack-item [options]="{x: 0, y: 0, w: 2, h: 1}">
+ *     <my-widget-component></my-widget-component>
+ *   </gridstack-item>
+ * </gridstack>
+ * ```
+ */
+export declare class GridstackItemComponent implements OnDestroy {
+    protected readonly elementRef: ElementRef<GridItemCompHTMLElement>;
+    /**
+     * Container for dynamic component creation within this grid item.
+     * Used to append child components programmatically.
+     */
+    container?: ViewContainerRef;
+    /**
+     * Component reference for dynamic component removal.
+     * Used internally when this component is created dynamically.
+     */
+    ref: ComponentRef<GridstackItemComponent> | undefined;
+    /**
+     * Reference to child widget component for serialization.
+     * Used to save/restore additional data along with grid position.
+     */
+    childWidget: BaseWidget | undefined;
+    /**
+     * Grid item configuration options.
+     * Defines position, size, and behavior of this grid item.
+     *
+     * @example
+     * ```typescript
+     * itemOptions: GridStackNode = {
+     *   x: 0, y: 0, w: 2, h: 1,
+     *   noResize: true,
+     *   content: 'Item content'
+     * };
+     * ```
+     */
+    set options(val: GridStackNode);
+    /** return the latest grid options (from GS once built, otherwise initial values) */
+    get options(): GridStackNode;
+    protected _options?: GridStackNode;
+    /** return the native element that contains grid specific fields as well */
+    get el(): GridItemCompHTMLElement;
+    /** clears the initial options now that we've built */
+    clearOptions(): void;
+    constructor(elementRef: ElementRef<GridItemCompHTMLElement>);
+    ngOnDestroy(): void;
+    static ɵfac: i0.ɵɵFactoryDeclaration<GridstackItemComponent, never>;
+    static ɵcmp: i0.ɵɵComponentDeclaration<GridstackItemComponent, "gridstack-item", never, { "options": "options"; }, {}, never, ["*"], true>;
+}