add types for translation manifest

src/Umbraco.Web.UI.Client/src/libs/extension-api/types.ts

@@ -100,6 +100,15 @@ export interface ManifestClassWithClassConstructor<T = unknown> extends Manifest
 	class: ClassConstructor<T>;
 }
 
+export interface ManifestDefaultExport<T = unknown> extends ManifestWithLoader<{ default: T }> {
+	/**
+	 * The file location of the javascript file to load
+	 *
+	 * @TJS-require
+	 */
+	js?: string;
+}
+
 export interface ManifestElement<ElementType extends HTMLElement = HTMLElement>
 	extends ManifestWithLoader<{ default: ClassConstructor<ElementType> } | Omit<object, 'default'>> {
 	/**

src/Umbraco.Web.UI.Client/src/packages/core/extension-registry/models/index.ts

@@ -20,6 +20,7 @@ import type { ManifestSectionView } from './section-view.model.js';
 import type { ManifestStore, ManifestTreeStore, ManifestItemStore } from './store.model.js';
 import type { ManifestTheme } from './theme.model.js';
 import type { ManifestTinyMcePlugin } from './tinymce-plugin.model.js';
+import type { ManifestTranslations } from './translations.model.js';
 import type { ManifestTree } from './tree.model.js';
 import type { ManifestTreeItem } from './tree-item.model.js';
 import type { ManifestUserProfileApp } from './user-profile-app.model.js';
@@ -89,6 +90,7 @@ export type ManifestTypes =
 	| ManifestStore
 	| ManifestTheme
 	| ManifestTinyMcePlugin
+	| ManifestTranslations
 	| ManifestTree
 	| ManifestTreeItem
 	| ManifestTreeStore

src/Umbraco.Web.UI.Client/src/packages/core/extension-registry/models/translations.model.ts

@@ -0,0 +1,26 @@
+import type { ManifestDefaultExport } from '@umbraco-cms/backoffice/extension-api';
+
+export interface ManifestTranslations extends ManifestDefaultExport<Record<string, Record<string, string>>> {
+	type: 'translations';
+	meta: MetaTranslations;
+}
+
+export interface MetaTranslations {
+	/**
+	 * The culture of the translations.
+	 * @example "en-US"
+	 */
+	culture: string;
+
+	/**
+	 * The translations.
+	 * @example
+	 * {
+	 *   "general": {
+	 *     "cancel": "Cancel",
+	 *     "close": "Close"
+	 *   }
+	 * }
+	 */
+	translations?: Record<string, Record<string, string>>;
+}