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/dd-manager.js

@@ -0,0 +1,14 @@
+/**
+ * dd-manager.ts 12.3.2
+ * Copyright (c) 2021-2025 Alain Dumesny - see GridStack root license
+ */
+/**
+ * Global state manager for all Drag & Drop instances.
+ *
+ * This class maintains shared state across all drag & drop operations,
+ * ensuring proper coordination between multiple grids and drag/drop elements.
+ * All properties are static to provide global access throughout the DD system.
+ */
+export class DDManager {
+}
+//# sourceMappingURL=dd-manager.js.map