Unify workspace dropdowns; Update layouts (#458)

Unified Account and Workspace drop-downs; Layout updates, now header lives within the PageBody component; Sidebars now use floating variant

packages/i18n/src/locales.tsx

@@ -0,0 +1,16 @@
+import { defaultLocale } from './default-locale';
+
+/**
+ * @name locales
+ * @description Supported locales
+ * @type {string[]}
+ * @default [defaultLocale]
+ */
+export const locales: string[] = [
+  defaultLocale,
+  // Add other locales here as needed
+  // Example: 'es', 'fr', 'de', etc.
+  // Uncomment the locales below to enable them:
+  // 'es', // Spanish
+  // 'fr', // French
+];