Chore: Bundle tiny-mce package

package.json

@@ -143,6 +143,7 @@
 		"./src/packages/property-editors",
 		"./src/packages/tags",
 		"./src/packages/templating",
+		"./src/packages/tiny-mce",
 		"./src/packages/umbraco-news",
 		"./src/packages/user",
 		"./src/packages/webhook"

src/packages/core/localization/registry/localization.registry.ts

@@ -1,8 +1,9 @@
-import type {
-	UmbLocalizationSetBase,
-	UmbLocalizationDictionary,
-	UmbLocalizationFlatDictionary,
-} from '@umbraco-cms/backoffice/localization-api';
+import {
+	type UmbLocalizationSetBase,
+	type UmbLocalizationDictionary,
+	type UmbLocalizationFlatDictionary,
+	UMB_DEFAULT_LOCALIZATION_CULTURE
+} from "@umbraco-cms/backoffice/localization-api";
 import { umbLocalizationManager } from '@umbraco-cms/backoffice/localization-api';
 import type { ManifestLocalization, UmbBackofficeExtensionRegistry } from '@umbraco-cms/backoffice/extension-registry';
 import { umbExtensionsRegistry } from '@umbraco-cms/backoffice/extension-registry';
@@ -21,7 +22,7 @@ function addOrUpdateDictionary(
 }
 
 export class UmbLocalizationRegistry {
-	#currentLanguage = new UmbStringState(document.documentElement.lang ?? 'en-us');
+	#currentLanguage = new UmbStringState(document.documentElement.lang !== '' ? document.documentElement.lang : UMB_DEFAULT_LOCALIZATION_CULTURE);
 	readonly currentLanguage = this.#currentLanguage.asObservable();
 
 	#loadedExtAliases: Array<string> = [];

src/packages/tiny-mce/package.json

@@ -0,0 +1,8 @@
+{
+	"name": "@umbraco-backoffice/tiny-mce",
+	"private": true,
+	"type": "module",
+	"scripts": {
+		"build": "vite build"
+	}
+}

src/packages/tiny-mce/vite.config.ts

@@ -0,0 +1,12 @@
+import { defineConfig } from 'vite';
+import { rmSync } from 'fs';
+import { getDefaultConfig } from '../../vite-config-base';
+
+const dist = '../../../dist-cms/packages/tiny-mce';
+
+// delete the unbundled dist folder
+rmSync(dist, { recursive: true, force: true });
+
+export default defineConfig({
+	...getDefaultConfig({ dist }),
+});