move dashboard extension

Author: madsrasmussen

src/packages/core/extension-registry/models/dashboard.model.ts renamed to src/packages/core/dashboard/dashboard.extension.ts

@@ -1,4 +1,4 @@
-import type { UmbDashboardElement } from '../interfaces/index.js';
+import type { UmbDashboardElement } from '../extension-registry/interfaces/index.js';
 import type { ManifestElement, ManifestWithDynamicConditions } from '@umbraco-cms/backoffice/extension-api';
 
 export interface ManifestDashboard
@@ -24,9 +24,3 @@ export interface MetaDashboard {
 	 */
 	pathname?: string;
 }
-
-/*
-export interface ConditionsDashboard {
-	sections: string[];
-}
-*/